Articles

Quick Answer: The Common Pleco is a beginner-level freshwater fish needing at least a 75-gallon tank, 72-86°F water, and pH 6.5-7.5. Common Plecos are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Common Pleco Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Common Pleco Overview The Common Pleco (Hypostomus plecostomus) is an excellent choice for newcomers to the hobby, native to South America. As a freshwater omnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Common Pleco is a peaceful species that generally coexists well with other non-aggressive fish. With proper care and appropriate water conditions, Common Plecos can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Congo Tetra is a beginner-level freshwater fish needing at least a 30-gallon tank, 75-81°F water, and pH 6.0-7.5. Congo Tetras are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Congo Tetra Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Congo Tetra Overview The Congo Tetra (Phenacogrammus interruptus) is an excellent choice for newcomers to the hobby, native to Congo River, Africa. As a freshwater omnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Congo Tetra is a peaceful species that generally coexists well with other non-aggressive fish. With proper care and appropriate water conditions, Congo Tetras can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Convict Cichlid is a beginner-level freshwater fish needing at least a 30-gallon tank, 68-82°F water, and pH 6.0-8.0. Convict Cichlids are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Convict Cichlid Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Convict Cichlid Overview The Convict Cichlid (Amatitlania nigrofasciata) is an excellent choice for newcomers to the hobby, native to Central America. As a freshwater omnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Convict Cichlid has a bold, aggressive personality that requires careful tank planning. With proper care and appropriate water conditions, Convict Cichlids can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Coral Beauty Angelfish is a intermediate-level saltwater fish needing at least a 55-gallon tank, 72-78°F water, and pH 8.1-8.4. Coral Beauty Angelfishs require consistent water quality and some experience to keep successfully. 📋 Table of Contents Coral Beauty Angelfish Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Coral Beauty Angelfish Overview The Coral Beauty Angelfish (Centropyge bispinosa) is a rewarding species suited to aquarists with some experience, native to Indo-Pacific. As a saltwater omnivore, this species has earned its place as a staple in reef aquariums and FOWLR (fish-only with live rock) setups worldwide. The Coral Beauty Angelfish can be semi-aggressive, especially when establishing territory or during breeding. With proper care and appropriate water conditions, Coral Beauty Angelfishs can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Corydoras Catfish is a beginner-level freshwater fish needing at least a 15-gallon tank, 72-79°F water, and pH 6.0-7.5. Corydoras Catfishs are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Corydoras Catfish Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Corydoras Catfish Overview The Corydoras Catfish (Corydoras paleatus) is an excellent choice for newcomers to the hobby, native to South America. As a freshwater omnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. Known for its docile temperament, the Corydoras Catfish fits well in peaceful community tanks. With proper care and appropriate water conditions, Corydoras Catfishs can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Discus is a expert-level freshwater fish needing at least a 55-gallon tank, 82-88°F water, and pH 5.0-6.5. Discuss demand precise water conditions and are best kept by experienced aquarists. 📋 Table of Contents Discus Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Discus Overview The Discus (Symphysodon discus) is a challenging but stunning species for experienced aquarists only, native to Amazon River. As a freshwater carnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Discus is a peaceful species that generally coexists well with other non-aggressive fish. With proper care and appropriate water conditions, Discuss can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Dottyback (Orchid) is a beginner-level saltwater fish needing at least a 30-gallon tank, 72-78°F water, and pH 8.1-8.4. Dottyback (Orchid)s are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Dottyback (Orchid) Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Dottyback (Orchid) Overview The Dottyback (Orchid) (Pseudochromis fridmani) is an excellent choice for newcomers to the hobby, native to Red Sea. As a saltwater carnivore, this species has earned its place as a staple in reef aquariums and FOWLR (fish-only with live rock) setups worldwide. The Dottyback (Orchid) can be semi-aggressive, especially when establishing territory or during breeding. With proper care and appropriate water conditions, Dottyback (Orchid)s can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Dwarf Gourami is a beginner-level freshwater fish needing at least a 10-gallon tank, 77-82°F water, and pH 6.0-7.5. Dwarf Gouramis are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Dwarf Gourami Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Dwarf Gourami Overview The Dwarf Gourami (Trichogaster lalius) is an excellent choice for newcomers to the hobby, native to South Asia. As a freshwater omnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Dwarf Gourami is a peaceful species that generally coexists well with other non-aggressive fish. With proper care and appropriate water conditions, Dwarf Gouramis can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Electric Yellow Cichlid is a intermediate-level freshwater fish needing at least a 30-gallon tank, 75-86°F water, and pH 7.6-8.8. Electric Yellow Cichlids require consistent water quality and some experience to keep successfully. 📋 Table of Contents Electric Yellow Cichlid Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Electric Yellow Cichlid Overview The Electric Yellow Cichlid (Labidochromis caeruleus) is a rewarding species suited to aquarists with some experience, native to Lake Malawi, Africa. As a freshwater omnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Electric Yellow Cichlid has a bold, aggressive personality that requires careful tank planning. With proper care and appropriate water conditions, Electric Yellow Cichlids can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Emperor Angelfish is a expert-level saltwater fish needing at least a 220-gallon tank, 72-78°F water, and pH 8.1-8.4. Emperor Angelfishs demand precise water conditions and are best kept by experienced aquarists. 📋 Table of Contents Emperor Angelfish Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Emperor Angelfish Overview The Emperor Angelfish (Pomacanthus imperator) is a challenging but stunning species for experienced aquarists only, native to Indo-Pacific. As a saltwater omnivore, this species has earned its place as a staple in reef aquariums and FOWLR (fish-only with live rock) setups worldwide. The Emperor Angelfish can be semi-aggressive, especially when establishing territory or during breeding. With proper care and appropriate water conditions, Emperor Angelfishs can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Firefish Goby is a beginner-level saltwater fish needing at least a 20-gallon tank, 72-80°F water, and pH 8.1-8.4. Firefish Gobys are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Firefish Goby Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Firefish Goby Overview The Firefish Goby (Nemateleotris magnifica) is an excellent choice for newcomers to the hobby, native to Indo-Pacific. As a saltwater carnivore, this species has earned its place as a staple in reef aquariums and FOWLR (fish-only with live rock) setups worldwide. The Firefish Goby is a peaceful species that generally coexists well with other non-aggressive fish. With proper care and appropriate water conditions, Firefish Gobys can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Firemouth Cichlid is a intermediate-level freshwater fish needing at least a 30-gallon tank, 75-86°F water, and pH 6.5-8.0. Firemouth Cichlids require consistent water quality and some experience to keep successfully. 📋 Table of Contents Firemouth Cichlid Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Firemouth Cichlid Overview The Firemouth Cichlid (Thorichthys meeki) is a rewarding species suited to aquarists with some experience, native to Central America. As a freshwater omnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Firemouth Cichlid can be semi-aggressive, especially when establishing territory or during breeding. With proper care and appropriate water conditions, Firemouth Cichlids can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Flame Angelfish is a intermediate-level saltwater fish needing at least a 55-gallon tank, 72-78°F water, and pH 8.1-8.4. Flame Angelfishs require consistent water quality and some experience to keep successfully. 📋 Table of Contents Flame Angelfish Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Flame Angelfish Overview The Flame Angelfish (Centropyge loricula) is a rewarding species suited to aquarists with some experience, native to Central Pacific. As a saltwater omnivore, this species has earned its place as a staple in reef aquariums and FOWLR (fish-only with live rock) setups worldwide. The Flame Angelfish can be semi-aggressive, especially when establishing territory or during breeding. With proper care and appropriate water conditions, Flame Angelfishs can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Flasher Wrasse is a intermediate-level saltwater fish needing at least a 30-gallon tank, 72-78°F water, and pH 8.1-8.4. Flasher Wrasses require consistent water quality and some experience to keep successfully. 📋 Table of Contents Flasher Wrasse Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Flasher Wrasse Overview The Flasher Wrasse (Paracheilinus carpenteri) is a rewarding species suited to aquarists with some experience, native to Western Pacific. As a saltwater carnivore, this species has earned its place as a staple in reef aquariums and FOWLR (fish-only with live rock) setups worldwide. The Flasher Wrasse is a peaceful species that generally coexists well with other non-aggressive fish. With proper care and appropriate water conditions, Flasher Wrasses can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Flowerhorn Cichlid is a intermediate-level freshwater fish needing at least a 75-gallon tank, 80-89°F water, and pH 7.0-8.0. Flowerhorn Cichlids require consistent water quality and some experience to keep successfully. 📋 Table of Contents Flowerhorn Cichlid Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Flowerhorn Cichlid Overview The Flowerhorn Cichlid (Hybrid (Cichlidae)) is a rewarding species suited to aquarists with some experience, native to Captive-bred (Malaysia). As a freshwater carnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Flowerhorn Cichlid has a bold, aggressive personality that requires careful tank planning. With proper care and appropriate water conditions, Flowerhorn Cichlids can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Frontosa Cichlid is a intermediate-level freshwater fish needing at least a 75-gallon tank, 75-79°F water, and pH 7.8-9.0. Frontosa Cichlids require consistent water quality and some experience to keep successfully. 📋 Table of Contents Frontosa Cichlid Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Frontosa Cichlid Overview The Frontosa Cichlid (Cyphotilapia frontosa) is a rewarding species suited to aquarists with some experience, native to Lake Tanganyika, Africa. As a freshwater carnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Frontosa Cichlid can be semi-aggressive, especially when establishing territory or during breeding. With proper care and appropriate water conditions, Frontosa Cichlids can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Goldfish is a beginner-level freshwater fish needing at least a 20-gallon tank, 65-72°F water, and pH 7.0-8.4. Goldfishs are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Goldfish Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Goldfish Overview The Goldfish (Carassius auratus) is an excellent choice for newcomers to the hobby, native to East Asia. As a freshwater omnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Goldfish is a peaceful species that generally coexists well with other non-aggressive fish. With proper care and appropriate water conditions, Goldfishs can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: Fancy goldfish need a minimum of 20–30 gallons for one fish plus 10 gallons per additional fish. Single-tail goldfish (common, comet) need 40+ gallons for one and 10–15 gallons per additional. Goldfish bowls and small tanks cause chronic suffering through ammonia buildup, stunted growth, and shortened lifespan — the “one inch per gallon” rule is dangerously wrong for goldfish. Goldfish are the most mistreated fish in the hobby — not out of malice, but because the information on their packaging and at checkout is catastrophically wrong. The 10-gallon “goldfish starter kit” that every big box pet store sells sets beginners up for failure and the fish up for a short, stressed life. FishBase documents goldfish reaching over 30cm in natural conditions. Let’s set the record straight on what goldfish actually need, because when kept properly, these fish are intelligent, long-lived, and remarkable. ...

Quick Answer: The Green Chromis is a beginner-level saltwater fish needing at least a 30-gallon tank, 72-79°F water, and pH 8.1-8.4. Green Chromiss are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Green Chromis Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Green Chromis Overview The Green Chromis (Chromis viridis) is an excellent choice for newcomers to the hobby, native to Indo-Pacific. As a saltwater omnivore, this species has earned its place as a staple in reef aquariums and FOWLR (fish-only with live rock) setups worldwide. The Green Chromis is a peaceful species that generally coexists well with other non-aggressive fish. With proper care and appropriate water conditions, Green Chromiss can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Green Spotted Puffer is a intermediate-level freshwater fish needing at least a 30-gallon tank, 75-82°F water, and pH 7.0-8.0. Green Spotted Puffers require consistent water quality and some experience to keep successfully. 📋 Table of Contents Green Spotted Puffer Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Green Spotted Puffer Overview The Green Spotted Puffer (Dichotomycter nigroviridis) is a rewarding species suited to aquarists with some experience, native to South/Southeast Asia. As a freshwater carnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Green Spotted Puffer has a bold, aggressive personality that requires careful tank planning. With proper care and appropriate water conditions, Green Spotted Puffers can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Guppy is a beginner-level freshwater fish needing at least a 10-gallon tank, 72-82°F water, and pH 7.0-8.0. Guppys are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Guppy Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Guppy Overview The Guppy (Poecilia reticulata) is an excellent choice for newcomers to the hobby, native to South America, Trinidad. As a freshwater omnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. Known for its docile temperament, the Guppy fits well in peaceful community tanks. With proper care and appropriate water conditions, Guppys can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Harlequin Rasbora is a beginner-level freshwater fish needing at least a 10-gallon tank, 72-77°F water, and pH 6.0-7.5. Harlequin Rasboras are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Harlequin Rasbora Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Harlequin Rasbora Overview The Harlequin Rasbora (Trigonostigma heteromorpha) is an excellent choice for newcomers to the hobby, native to Southeast Asia. As a freshwater omnivore, this species has earned its place as a staple in community tanks, species-only setups, and planted aquariums worldwide. The Harlequin Rasbora is a peaceful species that generally coexists well with other non-aggressive fish. With proper care and appropriate water conditions, Harlequin Rasboras can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: The Hawkfish (Flame) is a beginner-level saltwater fish needing at least a 30-gallon tank, 72-79°F water, and pH 8.1-8.4. Hawkfish (Flame)s are hardy and forgiving, making them ideal for newcomers to the hobby. 📋 Table of Contents Hawkfish (Flame) Overview Tank Requirements Diet & Feeding Compatibility & Tank Mates Common Health Issues Hawkfish (Flame) Overview The Hawkfish (Flame) (Neocirrhites armatus) is an excellent choice for newcomers to the hobby, native to Indo-Pacific. As a saltwater carnivore, this species has earned its place as a staple in reef aquariums and FOWLR (fish-only with live rock) setups worldwide. The Hawkfish (Flame) can be semi-aggressive, especially when establishing territory or during breeding. With proper care and appropriate water conditions, Hawkfish (Flame)s can live for several years and become a rewarding centerpiece — or supporting cast — of your aquarium. ...

Quick Answer: Change 25-30% of your aquarium water weekly for most freshwater community tanks. Heavily stocked tanks may need 50% weekly; lightly stocked planted tanks might manage 20% every 2 weeks. Test nitrate weekly — if it exceeds 20 ppm between changes, increase frequency or volume. Never change more than 50% at once unless addressing an emergency. Water changes are the most important — and most neglected — part of fishkeeping. Your filter handles ammonia and nitrite, but only water changes remove nitrate, replenish minerals, and reset pH. Skip them, and your tank slowly becomes toxic. ...