Started my 625g (water volume) 8 weeks ago and added fish too fast...ammonia spiked and has stubbornly stayed up...Wanted to save the fish but was told by many experienced hobbiest and LFS that even though they were showing signs of ich, ammonia burn, were lethargic and some not eating, that attempting to take them out with all the rock would kill them from the stress. I waited until this week and couldn’t stand seeing them suffer a slow death (of course because 100% my fault by adding fish too fast) so decide to take action. First ones out were the emperor angel( was so lethargic and in the corner that it was easy) and 4 midnight clowns. They all got 20 minute fresh water dips with hydroplex before going into the Q tank. The next day I was amazed what I saw, fish that were lively, no spots and hungry. They ate and have had an incredible appetite for last 4 days!!. Event though there are no signs of ich, I did start treating with paraguard 2 days ago...so far so good. Today I decided to remove the blonde naso from 625g DT (who was not eating anything except some nori) and scribble angel (who was eating well). I dipped the scribble with same mix for 20 minutes and Naso for 15 minutes (tangs stress a bit more in F/W dips so you really have to watch them closely). AS I look at them right now they appear to be recovering very well with all signs of ich gone. I will wait 24/48 hours, get them eating and start with paraguard also. So whats left in the tank are 2 coral catshark and 2 orange diamond watchman gobies. After Christmas I will attempt to remove the sharks during feeding time which is around 10 at night. I will then do hyposalinity in the tank. I’m told this is my best bet given the expense of treating such a large tank. Of course cant do hypo with sharks in there so have to hope I can get them out. They are 10 and 8” each. In case you’re wondering how I got the Naso and Scribble out without moving a rock....I’m glad they love nori ...the scribble went right into clear container with a piece of nori inside. Naso wouldn’t go in the net but got close enough for me to snatch him...again with nori. Besides yelling at me for putting too many fish in so fast, any thoughts? Suggestions on treating tank 1) with sharks in or 2) when sharks out are welcomed. Thx,....

