About 3 weeks ago, I bought a 29 gallon tank.
The water tested great (I forget what the #s were). So I added 6 small cichilds and a placo ( after they wer acclimated).
They looked fine, no spots, swimming well and doing their aggressive thing which I admit I like to watch.
Well, MY 8 yr old son decided to add his 2 gold feeder fish to this tank and that's when the trouble started.
I took the feeder goldfish out right away and explained to him why he shouldn't have put them in there in the first place.
I started noticing that some of my cichlids were hanging out in the corners and hiding more than normal and found one with a round white spot on his head which was outlined in pink. It looked a little fuzzy also. He died before I had the chance to remove him. Then I lost 2 more little ones (I say that because they are only like 1 1/2 inches long) who had what looked like the same spots and possibly ick.
I did a partial water change, the pH is 7.8, didn't have the supplies to check for ammonia or nitrites. I also removed the carbon filter then added Ick Away which says treats fungus and external parasites.
The fish started swimming around the tank more normally shortly after adding this. But one of them seems to be hanging out in the bottom at a corner again. I also upped the temp a bit, it's about 80 now.
I am planning on cleaning the stone and sand and do a bigger water change but I don't want to hurt my fish.
I'm also going to take my water in to have it tested today.
I don't know what else to do yet.
Actually, as I was writing this my yellow lab is not hanging out towards the bottom any more and is swimming again with the others.