Aquarium Filter Types Explained
Compare hang-on-back, canister, internal, sponge, and sump filters by media capacity, maintenance, flow, and installation needs.
TankPicks library
Aquarium filter guides
Choose and maintain filtration by understanding published specifications, physical fit, livestock needs, and the work required to keep water moving through clean media.
How to Size an Aquarium Filter
Use manufacturer tank ratings, actual water volume, flow, stocking, and maintenance access to choose an aquarium filter without relying on one number.
Aquarium Filter Flow Rate Without the Guesswork
Understand pump output, filter circulation, turnover estimates, flow distribution, and gentle-flow adjustments before comparing aquarium filters.
Filters for Betta, Shrimp, Fry, and Gentle-Flow Tanks
Plan safe intake protection and gentle, adjustable return flow for bettas, shrimp, fry, and other flow-sensitive aquarium livestock.
Filtration Planning for Large Aquariums
Plan filtration for large aquariums using coverage, redundancy, cabinet space, service access, and manufacturer-confirmed specifications.
Freshwater vs. Saltwater Aquarium Filters
Understand the difference between saltwater-compatible hardware and a complete marine or reef filtration system.
Reef Tank Filtration: What a Canister Filter Cannot Decide
Learn why reef filtration requires coordinated biological filtration, mechanical waste removal, protein skimming, circulation, and stable water management.
Aquarium Filter Maintenance Without Losing Stability
Build a practical filter-maintenance routine for mechanical media, biological media, chemical media, hoses, seals, and impellers.
Aquarium Filter Media: Mechanical, Biological, and Chemical
Arrange aquarium filter media by function and understand when to rinse, retain, replace, or omit each stage.
Hang-on-Back vs. Canister Filters
Compare HOB and canister filters by installation, media space, flow, maintenance access, leak points, and aquarium layout.