Apologies for what I already know will be a long post.
Recently in my goldfish tank, they got ich because I introduced a bristlenose pleco without quarantining it first. Now, whether through accidental cross contamination (I tried to be careful but was not sure how careful to be..) or because of the plant I bought on the same day from the same fish store that I put in my puffers’ tank, my puffer tank has ich as well. The goldfish got better within around two weeks. The 3 SAP puffer fish have had ich for at least a week and a half now and it has been very aggressive and all of the bleeding heart tetra’s that shared the tank with them slowly died off one by one. The puffers have been resilient, along with the one albino bristlenose pleco that doesn’t seem to have ich at all for some reason...? After discovering the puffers had ich, I started slowly raising the temp in their tank from 76 F to 88 F over the course of several days, raising it 2 degrees about every 12 hours.. I also gave them a dose of E.M. Erythromycin and API Super Ick Cure after an initial water change of 75%.
Since then, I have been giving them almost daily water changes, usually of 50% or more, always with a good vacuuming of the substrate. I ran out of E.M. Erythromycin after the first dosage (I had been using it on my goldfish) and stopped using it, continuing to replace the water taken out from water changes with water treated with just API Super Ick Cure (And Prime). A few days ago, I ran out of API Super Ick Cure as well, but found out online that (I think?) it’s main ingredient is malachite green, the same as Nox-ich, another medication I have (it may be several years old however.. :/), so I started using Nox-ich instead. So far I haven’t noticed any adverse effects in the fish due to the medication switch.
The puffers got covered in the ich pretty quickly from the start and within about three days I noticed a lot of change in their Behaviour, less appetite, their fins clamped, and they began to rest at the bottom in their already established favorite corner. Despite medication and the high temp (88F), their symptoms have not grown any better and it is hard to feed them. The ich also looks a little funny, as it almost appears fluffy in spots like a fungus, but also very much like Ick, and there are areas on the fish where the white dots hang on to the fish on wisps and strings (is that how they normally come off of the fish?) I have some pictures of all of these symptoms. I will also answer the listed tank questionnaire in my next text blob as this one is getting a little long...
Thanks for any help and/or advice anyone gives, your time and help are appreciated!