Who Gives A Fish Forums

I'm setting up a new 40 gallon tank and can't decide between a canister filter or a HOB. What's the real difference in maintenance and performance? I've heard canisters are better for big tanks but take more work to clean.

I've used both in my 55 gallon. Canisters are quieter and hold more media, but yeah, cleaning's a hassle. HOBs are easier to access, but they can be noisy. What kind of fish are you planning to keep?

HOBs are chill if you're lazy like me. Just pop off the lid and rinse the sponge. Canisters are sketchy if you don't wanna mess with hoses and stuff.

Mostly gonna have a community tank, some Tetras, Corys, and a pair of Angelfish. I'm leaning toward the canister for the extra filtration, but I'm worried about the setup being complicated.

dorvina wrote: ↑Mon Jun 30, 2025 4:51 pm Mostly gonna have a community tank, some Tetras, Corys, and a pair of Angelfish. I'm leaning toward the canister for the extra filtration, but I'm worried about the setup being complicated.

With Angelfish, the canister might be worth it. They're messy eaters, and the extra media space helps keep the water clean. Just watch some tutorials on setup—it's not as bad as it looks.

Yep, canisters are a pain at first, but once it's running, you're golden. Just don't forget to prime it right or you'll be cursing at the thing for hours.

Also, if you go HOB, get one with adjustable flow. Angelfish don't like strong currents, and some HOBs can be too much for them.

Thanks for the advice, everyone. I think I'll try the canister and just deal with the learning curve.

sandie wrote: ↑Mon Jun 30, 2025 6:17 pm Also, if you go HOB, get one with adjustable flow. Angelfish don't like strong currents, and some HOBs can be too much for them.

Good point. My Angelfish hid for days when I first got a HOB with no flow control. Had to rig a baffle to cut the current.