I am curious to see if anyone can help me figure out why all of the fish I have added to my 90g FOWLR
tank has died. After cycling the tank I added blue spotted puffer. Then after a bit of time I added a small kole tang and fox face lo and banana wrasse and a flame angel(not together but over time). All went well for about 3 weeks with them all in the tank together but then within one week the puffer,flame angel and tang all died. After consulting with some people, forums and lfs
I decided to treat the remaining banana wrasse and fox face lo with Kanaplex in their food. Again all seemed to be going well so I decided to add a regal angel who survived about a week and a half and died. I next decided I wasn't going to add any fish for a while and see what would happen so I added about 15lbs of cured "ready to go" LR
to my tank, my LFS
sent it home in a styrofoam cooler with water and said that it would be fine to add directly to the tank. I was checking the parameters in the tank daily after adding the rock and my ammonia didn't spike until the 5th day, at which point I did a 15g water change that day and another 15g water change the following day. The day after all of this my parameters were normal again but I noticed that banana wrasse appeared to have a divot missing out of his head and was starting to lose color on his face. So I moved him out of the tank into qt where he lived for 2 days being treated with a broad spectrum antibiotic then died. Back to the main DT where fox is the last fish swimming with his 2 starfish buddies a CC and a green brittle. Fox is very active and eating.
Now that you have the history I will say that I am good about doing my PWC
's and I clean my skimmer cup twice a week. I want to know how or why fox and starfish are surviving everything and what I should do to move forward.