Stephen Lee

We tested glass canopies, LED hoods and mesh tops to find aquarium lids that fit, cut evaporation and keep fish in — plus what to measure first.

We tested pads, rolls, and wool to find the best aquarium filter floss for fine particles, strong flow, and easy cutting.

We tested ceramic rings, sintered glass, bio balls and sponge pads to find the bio media worth putting in your filter, and the sizes that waste money.

We tested the leading bacteria supplements to find the ones that actually seed a filter — and which bottle suits a new tank, a reef, or a tight budget.

We tested nitrifying-bacteria starters for freshwater and marine tanks. Here is how to match one to your setup and cycle a new aquarium.

We tested UV sterilizers for freshwater tanks and chose drop-in, inline, and large-tank picks for clearer water.

We tested aquarium glues and sealants for planting, fragging and tank repair. Here’s which cyanoacrylate gel and which silicone to buy.

Desktop aquariums from 0.9 to 6.4 gallons, tested side by side: the kit worth your desk, what it leaves out, and what to add before fish.

Which starter aquarium kits hold up for kids — with reliable filters, durable glass, and beginner-friendly features.

We tested aquarium cooling fans for quiet airflow, rim fit, and reliable temperature control. Here are the best picks for nano, rimless, and axolotl tanks.