So I'm a little at a loss at what the cause is, but I've attempted to add new fish and it never fails that they disappear in the middle of the night. First I purchased 2 clownfish from a LFS, and they stayed around for over a month with no issues, then one day one of them disappeared. Next I tried 2 chromies ( from a different store ) and it wasn't even a week they disappeared one at a time. Next I tried 2 larger clownfish ( from live aquaria ) and they stayed for around a month until one day one went missing and the other still remains. My only two ideas when something like this is 1) What are all the parameters of the water and 2) Is something killing them?
My parameters have remained constant before, during, and after all this has happened.
Nitrites and Ammonia are 0, Nitrates go up to at most 40ppm, but usually sit lower than that ( Always have been this way ) Ph sits right around 8.0, salt is 1.025. I use RODI water as well. None of the tank mates/corals/clam/etc appear to be unhealthy or unhappy.
I have a yellow tang, blonde naso, damsel, diamond goby, long spine urchin, pincushion urchin, coral banded shrimp, maxima clam, and a variety of different corals. Then I still have 1 small clownfish and 2 larger clownfish.
The only fish that shows any sort of aggression is the damsel, he hates the new fish and he is bigger than the smaller clowfish and chromies, but the bigger clownfish are slightly bigger than him. Would the damsel be the cause? I've seen other people say they are, but its odd to me that he waits until night to do it, during the day he just charges at them if they come near his hiding spot, but doesn't do anything else.
The tank is 120g
Also noted I've never seen the dead fish, they just disappear, according to others/forums this isn't rare and cleanup crews make for a quick cleanup on anything dead, the deaths have also never caused any parameter to spike, but they are also small fish.
My parameters have remained constant before, during, and after all this has happened.
Nitrites and Ammonia are 0, Nitrates go up to at most 40ppm, but usually sit lower than that ( Always have been this way ) Ph sits right around 8.0, salt is 1.025. I use RODI water as well. None of the tank mates/corals/clam/etc appear to be unhealthy or unhappy.
I have a yellow tang, blonde naso, damsel, diamond goby, long spine urchin, pincushion urchin, coral banded shrimp, maxima clam, and a variety of different corals. Then I still have 1 small clownfish and 2 larger clownfish.
The only fish that shows any sort of aggression is the damsel, he hates the new fish and he is bigger than the smaller clowfish and chromies, but the bigger clownfish are slightly bigger than him. Would the damsel be the cause? I've seen other people say they are, but its odd to me that he waits until night to do it, during the day he just charges at them if they come near his hiding spot, but doesn't do anything else.
The tank is 120g
Also noted I've never seen the dead fish, they just disappear, according to others/forums this isn't rare and cleanup crews make for a quick cleanup on anything dead, the deaths have also never caused any parameter to spike, but they are also small fish.
