Help!! I just recently upgraded my tank from a 55g to a 100g with a 20g sump. I changed my lights from T5 to LED's. My parameters have been good across the board and my salinity is 1.25. I bought a few chromis and noticed one had a dark band running vertically down it. Didn't see it again after a day. Then my yellow tang had some king of ulcer on it that quickly spread and killed it by the next day. Since then, in a period of a couple of weeks, I have lost a Japanese Swallowtail, a bi-color angel, a coral beauty and a lawnmower blenny. I'm quickly running out of fish. I did find the Japanese Swallowtail and bi-color angel dead and didn't notice any of the discoloration or anything like the yellow tang. The other fish have just disappeared without a trace. I've looked on the floor and all over the tank. I purchased the bi-color angel recently along with some additional live rock. The coral beauty did not like him at all. I thought maybe the bi-color was killed by the coral beauty. But after the bi-color, then went the swallowtail, followed by the lawnmower blenny and most recently my coral beauty. I am thinking I may have got a hitchhiker with the rock I purchased. If that could be it, any ideas on what I should be looking for? I pulled out some rock and found several serpent stars. None looked big enough to kill my fish but I suppose it's possible. Not sure if they are bad to begin with. Any ideas please??
What's killing my fish????
- Thread starter phantomg
- Start date
A1t2o
New member
Did you let the tank cycle or check for ammonia and nitrite levels? You may have just rushed the upgrade and caused a cycle and the ammonia would kill the fish. You aren't finding the bodies because your clean up crew is doing a good job most likely. Plus lawnmower blennies are hard to find in general so I'm not surprised about you not finding that one.
My levels have been good. I should also mention that my corals still look healthy. I have not noticed them showing any ill signs though I don't know if a temporary spike would affect them. When I upgraded by tank I used my old water and rock, with additional water of course but I've been monitoring the ammonia and nitrates/nitrites and haven't seen any spikes.
CStrickland
New member
Google uronema marinum. I'm not very knowledgeable on diseases, but I think chromis are prone to it, it causes blotches or sores, and it kills pretty quickly and can live in the tank for a while. I hope that's not it though.
scooter31707
New member
Do you have a CUC? You should see some evidence of the fish or something.
CStrickland
New member
I've seen a few threads where people have good ways to work around that. I think it's like a free phone app where the camera registers a number for diff colors, and you use your phone cam to pic the color card for the test, and your sample. Then just compare numbers. I think if you search for colorblind reefer it won't be too hard to figure out. Also, there are checkers that give a digital number, and tests that change hue at a certain level rather than needing to match a sample. There's quite a few color blind folks in the hobby, maybe one good thing about having so many boys around
Thanks CStrickland. As for CUC, I have some snails and a couple of peppermint shrimp. That's about it at this time. I need to bolster my CUC but considering that is all I have, you would think I would find more. Unless they dragged in some holes in the rocks are under/behind them and I just can't find them.
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