Tanks & filtration

Freshwater vs saltwater and reef aquariums compared: equipment, startup cost, livestock prices, running costs, maintenance time and difficulty.

Compare long and tall aquarium shapes by floor space, surface area, swimming room, lighting depth, maintenance access, stand fit and livestock needs.

Choose and maintain aquarium filter media by debris, biological surface, chemical treatment, water flow, maintenance and the needs of your fish or plants.

Choose an aquarium filter: hang-on-back, canister, sponge, internal and sump filters, how to size by turnover, mechanical, biological and chemical media.