Best Hang-On-Back Filters for Planted Tanks (2026)
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Hang-on-back filters, often called HOB or power filters, clip onto the rim and draw water up through media before spilling it back in. They are easy to install, easy to service, and a common starting point for planted tanks because you can check and rinse media without touching the tank interior. Adjustable flow matters here, since many planted keepers want gentle circulation rather than a churning surface. HOB filters suit small to mid-size tanks and beginners who value simple maintenance. One thing to watch is surface agitation, because a splashy return can drive off injected CO2, so look for models that let you soften the outflow. They also work well as extra mechanical filtration alongside a sponge or canister. If you want affordable, accessible filtration and are not running a heavily CO2-injected show tank, a good HOB covers most planted setups nicely.
AquaClear 20 Power Filter, Fish Tank Filter for 5- to 20-Gallon Aquariums
A filtration pick for clear, healthy water.
AquaClear 110 Power Filter, Fish Tank Filter for 60- to 110-Gallon Aquariums
A filtration pick for clear, healthy water.
#1A filtration pick for clear, healthy water.
- + Keeps water clear and healthy
- + Quiet, reliable flow
- + Easy to maintain
- - Confirm the flow rate for your tank
- - Check media compatibility
#2A filtration pick for clear, healthy water.
- + Keeps water clear and healthy
- + Quiet, reliable flow
- + Easy to maintain
- - Confirm the flow rate for your tank
- - Check media compatibility
#3A filtration pick for clear, healthy water.
- + Keeps water clear and healthy
- + Quiet, reliable flow
- + Easy to maintain
- - Confirm the flow rate for your tank
- - Check media compatibility
#4A filtration pick for clear, healthy water.
- + Keeps water clear and healthy
- + Quiet, reliable flow
- + Easy to maintain
- - Confirm the flow rate for your tank
- - Check media compatibility
#5A filtration pick for clear, healthy water.
- + Keeps water clear and healthy
- + Quiet, reliable flow
- + Easy to maintain
- - Confirm the flow rate for your tank
- - Check media compatibility
#6A filtration pick for clear, healthy water.
- + Keeps water clear and healthy
- + Quiet, reliable flow
- + Easy to maintain
- - Confirm the flow rate for your tank
- - Check media compatibility
#7A filtration pick for clear, healthy water.
- + Keeps water clear and healthy
- + Quiet, reliable flow
- + Easy to maintain
- - Confirm the flow rate for your tank
- - Check media compatibility
Frequently asked questions
›What is the best choice among hang-on-back filters for planted tanks (2026)?
AquaClear 20 Power Filter, Fish Tank Filter for 5- to 20-Gallon Aquariums is our top overall pick. A filtration pick for clear, healthy water.
›What is a good budget option?
AquaClear 110 Power Filter, Fish Tank Filter for 60- to 110-Gallon Aquariums is the strongest low-cost pick in this guide. A filtration pick for clear, healthy water.
›How much should I expect to spend?
Picks in this guide span $ price bands (roughly: $ = under $30, $$ = $30–100, $$$ = over $100). We never display exact prices because they change constantly — the buttons above always show Amazon's current price.
›How were these products chosen?
Every product in this guide was individually researched on Amazon: we verify the exact listing, compare owner ratings and review volume, and write the pros and cons ourselves with small apartments and renters in mind. We earn a commission if you buy through our links, which never affects the ranking.
Last updated for 2026. Aquascape Nest independently selects every product; we may earn a commission from links above.