sepulatian
Moderator
Being this is your first week and you still have ammonia, are you SURE that you cannot go to the store and get some rubbermaid tubs to pull this rock out? You can slowly raise the SG on the rock which will help any life left on/ in the rock and stop the die off. As for the fish, the first week is the hardest on them as well. The ich parasite does not die immediately. They panic and try to embed themselves into a host (your fish). The added stress of ammonia and whatever else will make your fish succumb to the parasite easily. The wrasse sounds like he got dropsy which is an infection that is brought on by a low immune system. Stress lowers the immune system. Let's talk about what can be done at this point to save the rest of your stock. If you absolutely cannot find a place for a couple of bins (they are not all that big) then you will have to be on top of water changes. What are you feeding your fish? Add vitamines and fresh garlic to their foods. It will boost their immune system and give them a chance to fight back.