I've been treating for ick in my freshwater tank for the past 5 weeks now (that's not what this thread is about though, so please don't stop reading!) and am entering the (hopefully) final week of treatment. Yesterday I changed meds from a solution that contained formaldehyde to one that uses copper sulfate.
Today I noticed a number of white bumps on my angelfish much larger than the ick spots on his fins. They almost look like whiteheads and they have some fuzzy film hanging off of some of them. He keeps swimming slowly and sitting at the bottom of the tank. Earlier he was sort of rocking back and forth. I am worried that he is having some sort of reaction to the medication change. I thought about doing a water change but the label on the ick meds said to be sure to repeat treatment every 24 hours and did not suggest a water change unless there has been an overdose of the meds or the fish appear stressed. He also has had a very swollen tummy for a while now and I think he may be constipated--if so this could be adding to his stress and making whatever he's got worse. What should I do? None of the other fish appear to be too stressed, though I do have one phantom tetra that is acting a little twitchy.
Today I noticed a number of white bumps on my angelfish much larger than the ick spots on his fins. They almost look like whiteheads and they have some fuzzy film hanging off of some of them. He keeps swimming slowly and sitting at the bottom of the tank. Earlier he was sort of rocking back and forth. I am worried that he is having some sort of reaction to the medication change. I thought about doing a water change but the label on the ick meds said to be sure to repeat treatment every 24 hours and did not suggest a water change unless there has been an overdose of the meds or the fish appear stressed. He also has had a very swollen tummy for a while now and I think he may be constipated--if so this could be adding to his stress and making whatever he's got worse. What should I do? None of the other fish appear to be too stressed, though I do have one phantom tetra that is acting a little twitchy.