Hi everyone, I want to thank everyone for taking the time to answer (at length) many of my questions.
My latest obeservations:
The paros are all eating well and look well. The two of them that very closed caudal fins are begining to open up. But I am sure I see something gray and patchy on them, almost similar to the picture of the chocolate I posted. I will keep an eye on it, I just hope it doesn’t spread quickly. I notice that those fish swim almost with their tail end slightly pointing down, as if it was dragging itself.
The chocolates have colored back up, some look normal, caudals starting to open. I have not noticed them eating yet.
A few of the sparkling gouramis are still scratching/flashing against plant leaves. They were doing this before I medicated.
Tonight, I am going to drain the tank down to about 7 gallons and slowly add a gallon a day at first of 5.0 RO water.
At this point, my prize fishes are the paros. I just hope the other fish are not going to give a disease to all my paros. I am very encouraged by many comments here showing the paros have a strong immune system.
Ryan