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I'm not sure if it's fin rot or something else. New to treating disease. 15 gal tall tank, cycled, ammonia 0, nitrite 0, nitrate 0, temp 73deg, pH 6.6. HOB filter (with active bacterial mat), plus sponge filter on airstone (no visible bacterial mat). There are 12 serpae tetras (ie red minor...

Hi, we have a new betta and he's sluggish, and it could be a bunch of factors, so please help us figure out what to do! We got him 11 days ago and put him in a 2.5 gal tank with top filter, betta heater, gravel, a couple fake plants, a couple real plants, a decoration, and a couple of snails...

I just put a couple snails in a scummy tank. Check out the cool trails they make in the scum! It looks to me like while the snail travels in a straight line, it munches side to side like a corncob. Great little workers!

Our 15 gal high tank has been cycled for a couple of weeks. We have 4 long-finned golden zebra danios (2 male, 2 female). We plan to add more, maybe another danio and some tetras. We left for a four-night trip (a pet sitter fed the fish), and when we returned, we found that the others had...

Hi everyone, I heard this was a great forum. I have a small 2.5 gal quarantine tank with a filter on top. For fish like danios, is it OK to not have an airstone? Thanks!