They don't clog up as easy but also I have found doesn't trap as much BB as the fine sponges. And with fry and shrimp you need that gunk for them to feed on.AquaKid said:I'd recommend the Aquarium Coop Sponge filters. The biggest advantage to them is that they don't clog up with fish waste too quickly compared to sponge filters with a high foam density.
That is give and take on sponge density. Less dense less maintenance and doesn't clog as easy but less BB. And lots of BB on fine but more maintenance.AquaKid said:I'd recommend the Aquarium Coop Sponge filters. The biggest advantage to them is that they don't clog up with fish waste too quickly compared to sponge filters with a high foam density.
Exact reason I like the coarse is for my betta. Low flow. Plus only 1 fish bio load and they don't pick at sponge anyways.Betta'sAnonymous said:I didn't even know they made less dense sponge filters! I don't even know what brand of sponge filters i have in my betta tanks, just that they are the dense ones and the bettas have no problems with them like they did the HOBs.
I use the Uxcell XY-380s (on Amazon) in all my tanks which I'm pretty sure are the same thing or, if not, are very similar. They're fantastic and very low maintenance. I still use a HOB filter as well, just on reduced current. I also use a pretty massive pre-filter sponge on that bad boy. For the Sponge Filters, I use Tetra Whisper 40 air pumps.SanDiegoRedneck said:I have these in 20 and 29gal shrimp tanks. (Says up to 50 but you know. Lol) Good size for lots of BB, plus has upgraded pipe to bottom with no extra air stone needed. Sinks immediately no risk of floating. And these are extra fine so no issues w fry. In pic you can see few day old shrimpleete on filter no issues.