Aquarium Equipment Reviews

In-depth reviews and buyer's guides for every piece of aquarium equipment. Find the best gear for your tank size and budget.

Aquarium Filters

HOB, canister, sponge, and internal filters compared by tank size.

Sizing guide and reviews for every tank from 5 to 125+ gallons.

Best LED lights for planted tanks, fish-only setups, and reef tanks.

Gravel, sand, and soil compared. Best substrates for planted tanks.

API Master Kit vs strips. How to test ammonia, nitrite, nitrate, and pH.

Quiet air pumps for sponge filters and aeration.

Pressurized, paintball, and DIY CO2 for planted tanks.

When and how to use UV sterilizers for algae and disease control.

Python water changers and manual siphons by tank size.

Seachem Prime and dechlorinator comparison.