We test filters, tanks, lighting, and livestock gear so you can skip the guesswork and build an aquarium that actually works — whether you're starting your first 10-gallon or scaling a reef system.
Best Filters 2026 Browse All GuidesFeatured Guides
Our most popular buying guides — updated monthly with new products, pricing, and test results.
🔬 Filtration
HOB, canister, and sponge filters compared across flow rate, media capacity, noise, and value. Freshwater and saltwater picks included.
🐠 Beginner
The best starter aquarium kits for new fishkeepers. All-in-one tanks that include filtration, lighting, and heating — ready to cycle and stock.
🪸 Reef
You don't need $5,000 to start a reef tank. Here's how to build a stunning nano reef for under $500 with the right equipment choices.
About AquariumLab
AquariumLab exists because most aquarium "reviews" are just rewritten product descriptions. We take a different approach — testing equipment against measurable criteria and recommending based on actual performance.
Whether you're cycling your first tank or dialing in a mixed reef, our guides cut through the noise and give you clear, evidence-based recommendations.
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20-30 gallon tanks are ideal for beginners: large enough for stable water chemistry, small enough to manage. Avoid tiny tanks (<10 gallons) which have rapid parameter swings. A 20-gallon long provides more swimming space than a tall tank. Start with freshwater — saltwater requires more experience.
Complete 20-gallon setup: $300-$500. Includes: tank ($50-$100), stand ($80-$150), filter ($40-$80), heater ($30-$50), lighting ($50-$100), substrate/decor ($50-$100), water conditioner/test kit ($30-$50). Fish and plants: $50-$100. Don't skimp on filter or heater — they're critical for fish health.
Weekly: 10-20% water change, gravel vacuuming, filter media rinse (in tank water). Monthly: Full filter cleaning, equipment check. Daily: Feeding observation, temperature check. Never do 100% water changes — they crash the nitrogen cycle. Consistency is more important than frequency.
Top beginner fish: Betta (5+ gallon solo), Neon Tetras (school of 6+), Corydoras Catfish (3+), Guppies (easy breeders), Platies (colorful, hardy), and Zebra Danios (active). Avoid: Goldfish (produce too much waste), Oscars (grow huge), and saltwater species until experienced.
Free PDF: Equipment shopping list, nitrogen cycle guide, fish compatibility chart, and maintenance schedule template.
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