I have a 30 gal
freshwater tank. It is mainly a livebearer tank, with a few tetras. I have close to 20" of fish. I noticed a couple of my new fish had a little fin rot. Since I do not have a QT
tank, I have been treating the whole tank. For the past two days, I have been using Melafix, along with 25% pwc
, and taking the carbon packs out of my HOB
filter. My question is how long is it safe to leave out the carbon packs? The fish seem to be getting better, with fins growing back.
Also, there is one guppy where it looks like the fins are hard or stiff. Anyone know what this is? thanks