I'm totally new to this forum and to goldfish so please bear with me. A couple of weeks ago I inherited this aquarium. The owners were moving and didn't want to take it. It is 20 gallons - woefully overstocked - 5 fish and probably under equipped. About 80% of the tank was emptied for the move and the fish were bagged in tank water. The water was very dirty but I thought after the move it might be better to leave the 20% that was left in the tank & the bags there than to start from scratch. The filter (Aquaclear 20) was not changed. There is also 2 air stones - well one small one and one long bar. I'm sorry I don't have much of the info you may need. I live in a very small town and though we do have a pet store the supply of aquarium needs is limited. I am on well water (on the farm) but have nothing to test it with so have no idea of the specs. I have been feeding the feed that came with the tank - Nutrafin Max and Wardley Goldfish Floating Pellets.
All of the fish seem to be doing fine - eating, active, pooping well etc. but I do have 2 problems. 1) Lilly - the Balloon Molly(?) appears to have Ich (just noticed on Thursday). She is solid white but close inspection looks like Ich to me. 2) Tippy - the Lionhead(?) was swimming somewhat on her side from the time I brought them home. She/He(?) did that for a couple of days but now swims fine. She also has a large kind of lump or bump on one side (also since I got her) which seemed to me to be the reason for her lopsided swimming. I just looked to me like she was more bouyant on that side. I just watched her for several days and the lump got a little bit bigger, the scales are somewhat protruded on it and then it developed a small sore almost as if it split from getting so large. She continues to eat and swim well. She and the others do seem to "scratch" on the rocks periodically though I don't think excessively.
What I have done: Found this site and read until it's all blurring together with info overload. The water has been completely changed out. The filter components have all been cleaned/changed in stages. Gravel has been vaccuumed (was filthy). I tied to get some aquarium salt for the Ich but the local pet store didn't have any. She has ordered some for me but it won't be there until at least the end of the month so for the Ich I got CopperSafe. Treated water with that yesterday. Don't know when I should expect to see results but none so far on the Ich. I also got Maracyn-Two and have started that. Today - 24 hours since treatment - the lump on Tippy seems to have gone down some (maybe my imagination) but the scales are still "up" and no change in the sore - no better/no worse. The store also had Maracyn and Maracyn Plus. I read the package insert a dozen times but since I don't know what the problem is I didn't know which to try.
I've fallen in love with these little guys already and would like to do the best I can for them. Unfortunately a bigger tank is not an option right now ($$) but will be keeping an eye out for something. Hopefull I can try to combat the overstocking by keeping it really clean. Any advise you folks can give me on threatment I've started or something else I can try would sure be appreciated. Keep in mind limited funds and limited access to product in this small town. I'm sorry this is so long. I wanted to try to give as much info as I thought might be usefull.