92 guides
African Dwarf Frog Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete African Dwarf Frog care guide: 10-gallon minimum tank, 72-82°F, pH 6.5-7.5. Learn diet, compatible tank mates, and health tips for Hymenochirus boettge
→Angelfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Angelfish care guide: 30-gallon minimum tank, 75-82°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Pterophyllum scalare.
→Anthias (Lyretail) Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Anthias (Lyretail) care guide: 70-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Pseudanthias squamip
→Apistogramma Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Apistogramma care guide: 20-gallon minimum tank, 73-82°F, pH 5.0-7.0. Learn diet, compatible tank mates, and health tips for Apistogramma cacatuoides.
→The Aquarium Nitrogen Cycle Explained (Beginner's Guide)
The aquarium nitrogen cycle explained for beginners: how it works, how long it takes, how to speed it up, and how to tell when your tank is cycled.
→Bangaii Cardinalfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Bangaii Cardinalfish care guide: 30-gallon minimum tank, 72-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Pterapogon kaudern
→Best Aquarium Filters 2026: Complete Buyer's Guide
We tested 15+ aquarium filters across HOB, canister, and sponge categories. Here are the best aquarium filters for freshwater and saltwater tanks in 2026.
→Best Aquarium Heaters 2026: Top Picks for Every Tank Size
The best aquarium heaters for 2026 — from nano tanks to 100+ gallon setups. Cobalt Neo-Therm, Eheim Jager, Fluval E Series reviewed and ranked.
→Best Aquarium Lighting 2026: Top LED Lights for Fish and Planted Tanks
Best aquarium LED lights for 2026 — fish-only tanks, planted tanks, and high-tech planted setups. Fluval Plant 3.0, Finnex Planted+, and more reviewed.
→Best Aquarium Plants for Beginners (2026)
The 8 easiest aquarium plants for beginners — low light, no CO2 needed, and nearly indestructible. Java fern, Anubias, Amazon sword, and more.
→Best Beginner Fish Tanks 2026: All-in-One Kits Reviewed
The best starter aquarium kits for beginners in 2026. We compare all-in-one fish tanks with built-in filtration, lighting, and heating from Fluval, MarineLand,
→Best Fish for Beginners: 10 Easy Aquarium Species
Discover the best beginner fish for your first aquarium. Hardy, peaceful, and easy-to-care-for species perfect for new fishkeepers.
→Betta Fish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Betta Fish care guide: 5-gallon minimum tank, 76-82°F, pH 6.5-7.5. Learn diet, compatible tank mates, and health tips for Betta splendens.
→Bi-Color Blenny Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Bi-Color Blenny care guide: 30-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Ecsenius bicolor.
→Black Phantom Tetra Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Black Phantom Tetra care guide: 10-gallon minimum tank, 72-82°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Hyphessobrycon mega
→Blue Tang Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Blue Tang care guide: 100-gallon minimum tank, 72-82°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Paracanthurus hepatus.
→Bolivian Ram Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Bolivian Ram care guide: 20-gallon minimum tank, 74-82°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Mikrogeophagus altispinosu
→Bristlenose Pleco Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Bristlenose Pleco care guide: 25-gallon minimum tank, 73-81°F, pH 6.5-7.5. Learn diet, compatible tank mates, and health tips for Ancistrus cirrhosis.
→Cardinal Tetra Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Cardinal Tetra care guide: 15-gallon minimum tank, 73-81°F, pH 4.6-6.2. Learn diet, compatible tank mates, and health tips for Paracheirodon axelrodi.
→Cherry Barb Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Cherry Barb care guide: 20-gallon minimum tank, 72-80°F, pH 6.0-7.0. Learn diet, compatible tank mates, and health tips for Puntius titteya.
→Cleaner Wrasse Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Cleaner Wrasse care guide: 55-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Labroides dimidiatus.
→Clown Loach Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Clown Loach care guide: 75-gallon minimum tank, 77-86°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Chromobotia macracanthus.
→Clown Triggerfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Clown Triggerfish care guide: 200-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Balistoides conspici
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Clownfish (Ocellaris) Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Clownfish (Ocellaris) care guide: 20-gallon minimum tank, 74-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Amphiprion ocella
→Common Pleco Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Common Pleco care guide: 75-gallon minimum tank, 72-86°F, pH 6.5-7.5. Learn diet, compatible tank mates, and health tips for Hypostomus plecostomus.
→Congo Tetra Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Congo Tetra care guide: 30-gallon minimum tank, 75-81°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Phenacogrammus interruptus.
→Convict Cichlid Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Convict Cichlid care guide: 30-gallon minimum tank, 68-82°F, pH 6.0-8.0. Learn diet, compatible tank mates, and health tips for Amatitlania nigrofascia
→Coral Beauty Angelfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Coral Beauty Angelfish care guide: 55-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Centropyge bispi
→Corydoras Catfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Corydoras Catfish care guide: 15-gallon minimum tank, 72-79°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Corydoras paleatus.
→Discus Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Discus care guide: 55-gallon minimum tank, 82-88°F, pH 5.0-6.5. Learn diet, compatible tank mates, and health tips for Symphysodon discus.
→Dottyback (Orchid) Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Dottyback (Orchid) care guide: 30-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Pseudochromis fridma
→Dwarf Gourami Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Dwarf Gourami care guide: 10-gallon minimum tank, 77-82°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Trichogaster lalius.
→Electric Yellow Cichlid Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Electric Yellow Cichlid care guide: 30-gallon minimum tank, 75-86°F, pH 7.6-8.8. Learn diet, compatible tank mates, and health tips for Labidochromis c
→Emperor Angelfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Emperor Angelfish care guide: 220-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Pomacanthus imperato
→Firefish Goby Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Firefish Goby care guide: 20-gallon minimum tank, 72-80°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Nemateleotris magnifica.
→Firemouth Cichlid Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Firemouth Cichlid care guide: 30-gallon minimum tank, 75-86°F, pH 6.5-8.0. Learn diet, compatible tank mates, and health tips for Thorichthys meeki.
→Flame Angelfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Flame Angelfish care guide: 55-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Centropyge loricula.
→Flasher Wrasse Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Flasher Wrasse care guide: 30-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Paracheilinus carpenteri
→Flowerhorn Cichlid Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Flowerhorn Cichlid care guide: 75-gallon minimum tank, 80-89°F, pH 7.0-8.0. Learn diet, compatible tank mates, and health tips for Hybrid (Cichlidae).
→Frontosa Cichlid Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Frontosa Cichlid care guide: 75-gallon minimum tank, 75-79°F, pH 7.8-9.0. Learn diet, compatible tank mates, and health tips for Cyphotilapia frontosa.
→Goldfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Goldfish care guide: 20-gallon minimum tank, 65-72°F, pH 7.0-8.4. Learn diet, compatible tank mates, and health tips for Carassius auratus.
→Goldfish Tank Size Guide: How Much Space Do Goldfish Actually Need?
How big does a goldfish tank need to be? Tank size requirements for fancy and single-tail goldfish, filtration needs, and why bigger always wins.
→Green Chromis Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Green Chromis care guide: 30-gallon minimum tank, 72-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Chromis viridis.
→Green Spotted Puffer Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Green Spotted Puffer care guide: 30-gallon minimum tank, 75-82°F, pH 7.0-8.0. Learn diet, compatible tank mates, and health tips for Dichotomycter nigr
→Guppy Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Guppy care guide: 10-gallon minimum tank, 72-82°F, pH 7.0-8.0. Learn diet, compatible tank mates, and health tips for Poecilia reticulata.
→Harlequin Rasbora Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Harlequin Rasbora care guide: 10-gallon minimum tank, 72-77°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Trigonostigma heterom
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Hawkfish (Flame) Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Hawkfish (Flame) care guide: 30-gallon minimum tank, 72-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Neocirrhites armatus.
→How Often to Change Aquarium Water: Complete Guide
Learn how often to change aquarium water based on tank size, stocking, and filtration. Weekly water change schedules, step-by-step instructions, and common mist
→How to Cycle a Fish Tank: Complete Beginner's Guide
Step-by-step guide to cycling your aquarium. Learn fishless cycling, fish-in cycling, and how to test water parameters for a safe, healthy tank.
→How to Lower pH in an Aquarium (Safe Methods That Work)
How to safely lower pH in a freshwater aquarium using driftwood, peat moss, RO water, and CO2 injection — without causing dangerous pH swings.
→How to Treat Ich in an Aquarium (2026 Step-by-Step Guide)
Step-by-step guide to treating ich (white spot disease) in freshwater aquariums. Best medications, heat treatment, and prevention tips.
→Jack Dempsey Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Jack Dempsey care guide: 55-gallon minimum tank, 72-86°F, pH 6.5-8.0. Learn diet, compatible tank mates, and health tips for Rocio octofasciata.
→Koi Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Koi care guide: 250-gallon minimum tank, 59-77°F, pH 7.0-8.5. Learn diet, compatible tank mates, and health tips for Cyprinus rubrofuscus.
→Kuhli Loach Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Kuhli Loach care guide: 15-gallon minimum tank, 75-86°F, pH 5.5-6.5. Learn diet, compatible tank mates, and health tips for Pangio kuhlii.
→Kupang Damselfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Kupang Damselfish care guide: 20-gallon minimum tank, 72-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Chrysiptera hemicyane
→Lawnmower Blenny Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Lawnmower Blenny care guide: 30-gallon minimum tank, 72-82°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Salarias fasciatus.
→Leopard Wrasse Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Leopard Wrasse care guide: 55-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Macropharyngodon meleagr
→Longnose Hawkfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Longnose Hawkfish care guide: 30-gallon minimum tank, 72-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Oxycirrhites typus.
→Mandarin Fish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Mandarin Fish care guide: 30-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Synchiropus splendidus.
→Midas Blenny Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Midas Blenny care guide: 30-gallon minimum tank, 72-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Ecsenius midas.
→Molly Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Molly care guide: 10-gallon minimum tank, 72-82°F, pH 7.5-8.5. Learn diet, compatible tank mates, and health tips for Poecilia sphenops.
→Neon Tetra Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Neon Tetra care guide: 10-gallon minimum tank, 68-79°F, pH 6.0-7.0. Learn diet, compatible tank mates, and health tips for Paracheirodon innesi.
→Oscar Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Oscar care guide: 75-gallon minimum tank, 74-81°F, pH 6.0-8.0. Learn diet, compatible tank mates, and health tips for Astronotus ocellatus.
→Otocinclus Catfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Otocinclus Catfish care guide: 10-gallon minimum tank, 72-79°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Otocinclus vittatus.
→Pajama Cardinalfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Pajama Cardinalfish care guide: 30-gallon minimum tank, 72-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Sphaeramia nematopt
→Panda Corydoras Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Panda Corydoras care guide: 10-gallon minimum tank, 68-77°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Corydoras panda.
→Pea Puffer Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Pea Puffer care guide: 10-gallon minimum tank, 74-82°F, pH 7.0-8.0. Learn diet, compatible tank mates, and health tips for Carinotetraodon travancoricu
→Peacock Cichlid Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Peacock Cichlid care guide: 55-gallon minimum tank, 76-82°F, pH 7.5-8.5. Learn diet, compatible tank mates, and health tips for Aulonocara baenschi.
→Peacock Eel Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Peacock Eel care guide: 35-gallon minimum tank, 73-82°F, pH 6.5-7.5. Learn diet, compatible tank mates, and health tips for Macrognathus siamensis.
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Pearl Gourami Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Pearl Gourami care guide: 30-gallon minimum tank, 77-82°F, pH 6.5-7.5. Learn diet, compatible tank mates, and health tips for Trichopodus leerii.
→Piranha (Red-bellied) Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Piranha (Red-bellied) care guide: 60-gallon minimum tank, 75-82°F, pH 5.5-7.5. Learn diet, compatible tank mates, and health tips for Pygocentrus natte
→Platy Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Platy care guide: 10-gallon minimum tank, 70-77°F, pH 7.0-8.3. Learn diet, compatible tank mates, and health tips for Xiphophorus maculatus.
→Porcupine Pufferfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Porcupine Pufferfish care guide: 100-gallon minimum tank, 72-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Diodon holocanthu
→Powder Blue Tang Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Powder Blue Tang care guide: 100-gallon minimum tank, 72-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Acanthurus leucostern
→Rainbow Fish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Rainbow Fish care guide: 30-gallon minimum tank, 72-77°F, pH 7.0-8.0. Learn diet, compatible tank mates, and health tips for Melanotaenia boesemani.
→Ram Cichlid Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Ram Cichlid care guide: 20-gallon minimum tank, 78-85°F, pH 5.0-7.0. Learn diet, compatible tank mates, and health tips for Mikrogeophagus ramirezi.
→Redtail Catfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Redtail Catfish care guide: 1000-gallon minimum tank, 68-79°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Phractocephalus hemio
→Rope Fish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Rope Fish care guide: 45-gallon minimum tank, 72-82°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Erpetoichthys calabaricus.
→Royal Gramma Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Royal Gramma care guide: 30-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Gramma loreto.
→Rummy Nose Tetra Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Rummy Nose Tetra care guide: 15-gallon minimum tank, 75-82°F, pH 5.5-7.0. Learn diet, compatible tank mates, and health tips for Hemigrammus rhodostomu
→Silver Arowana Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Silver Arowana care guide: 250-gallon minimum tank, 75-82°F, pH 6.0-7.0. Learn diet, compatible tank mates, and health tips for Osteoglossum bicirrhosu
→Silver Dollar Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Silver Dollar care guide: 75-gallon minimum tank, 75-82°F, pH 5.0-7.0. Learn diet, compatible tank mates, and health tips for Metynnis argenteus.
→Six Line Wrasse Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Six Line Wrasse care guide: 30-gallon minimum tank, 72-78°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Pseudocheilinus hexatae
→Snowflake Clownfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Snowflake Clownfish care guide: 20-gallon minimum tank, 74-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Amphiprion ocellari
→Snowflake Moray Eel Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Snowflake Moray Eel care guide: 50-gallon minimum tank, 72-79°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Echidna nebulosa.
→Sterbai Corydoras Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Sterbai Corydoras care guide: 15-gallon minimum tank, 75-82°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Corydoras sterbai.
→Swordtail Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Swordtail care guide: 15-gallon minimum tank, 72-79°F, pH 7.0-8.4. Learn diet, compatible tank mates, and health tips for Xiphophorus hellerii.
→Tiger Barb Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Tiger Barb care guide: 20-gallon minimum tank, 74-79°F, pH 6.0-7.0. Learn diet, compatible tank mates, and health tips for Puntigrus tetrazona.
→Tomato Clownfish Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Tomato Clownfish care guide: 20-gallon minimum tank, 74-82°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Amphiprion frenatus.
→Yellow Tang Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Yellow Tang care guide: 75-gallon minimum tank, 75-82°F, pH 8.1-8.4. Learn diet, compatible tank mates, and health tips for Zebrasoma flavescens.
→Yoyo Loach Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Yoyo Loach care guide: 30-gallon minimum tank, 75-86°F, pH 6.0-7.5. Learn diet, compatible tank mates, and health tips for Botia almorhae.
→Zebra Danio Care Guide: Tank Size, Diet, and Compatibility (2026)
Complete Zebra Danio care guide: 10-gallon minimum tank, 65-77°F, pH 6.5-7.0. Learn diet, compatible tank mates, and health tips for Danio rerio.