Hi there
I had 5 discus that I grew out from babies had them for about 5 months. I then went and brought 2 new discus the same size. Did the right thing when putting them in the tanks and everything seemed fine for about two days. Now my discus are all hiding in one corner and the ones I have had the longest have clenched fins and have gone really dark all look extremely unhappy. The newer ones are hiding with them but they occasionally swim out. None are eating.
I have checked the water all seems good. ph about 6.8, Ammonia 0. Did a 50% change on Wednesday, 25% Thursday and a good 30% today. I also put some salt in as this was recommended in one of my discus books.
Any suggestions? I didn't want to move them out of the tank if it'll make it worse. I also don't want them to all die on me.