It has a small block of filter sponge at the bottom and it pulls water through that and out the port at the top. Has little suction cups to stick it to the glass, fully submerged. It’s quieter than a HOB because there is no above the surface water trickling.
I’ve mostly used them in 10-gallon tanks, it’s true. I’m mostly replacing them with sponge filters, though, because these things needs to be cleaned more often than I like. They do a good job for what they are, though.
Hmm, I’m not familiar with them. Can you link me to an example? How do they work?
https://a.co/d/bOk9VP6
It has a small block of filter sponge at the bottom and it pulls water through that and out the port at the top. Has little suction cups to stick it to the glass, fully submerged. It’s quieter than a HOB because there is no above the surface water trickling.
Damn, I wish my tank was bigger. I think this would be pretty large in a 4.3 gal though…
Still, goals for a bigger tank when I can (someday) have a house, haha.
I’ve mostly used them in 10-gallon tanks, it’s true. I’m mostly replacing them with sponge filters, though, because these things needs to be cleaned more often than I like. They do a good job for what they are, though.
I might opt for one of those sometime, especially if this HOB is loud or just awful in general. Fingers crossed it works though, haha.