Disappearing Chromis (Syndrome)

[tony_caliente]

Any one buy 1 or a school of Chromis (green) and find that slowly that start disappearing. I have no predators, parameters are excellent and it was eating like it had 3 rectums! It's not in my sump or anywhere it can get trapped. I was going to buy a school after suffering an ich outbreack 2 months ago. But don't want to do it, if this is one of their mysteries.

 

[legalreefer]

How many did you start with, and how many have you lost? If the tank has been going for a while, there are plenty of critters that will eat em up when they die.

 

[drnecropolis]

I've always heard they outcompete/kill the others.. If you want 5 buy 10..

Not sure.. I'm down to 2 of them.. Although mine are HUGE!

 

[scrilla]

DrNecropolis;491769 wrote: I've always heard they outcompete/kill the others.. If you want 5 buy 10..

Not sure.. I'm down to 2 of them.. Although mine are HUGE!

Never Heard That But That Would Explain Why I Started With 3 And Now Only Have 1 Remaining. The Remaining One Was Always The Most Active And Will Always Come Out And Say Hello...

 

[tony_caliente]

One (1).

 

[enderg60]

usually about 1/3 will die in the first week, after that they start picking off weaker ones in the group(does not matter the size of the group either)

I got 35 of them originally(wanted a school of 20), and after a week I was down to about 25, then over a month it went down to 13 or 14 I think. Havent lost any more over the past 3 months though.

gonna go get another 15 to try and get to my original goal of 20.

 

[tony_caliente]

Well, I am not going to go that route. I rather spend the money on something with a lower mortality rate.

Thanks for the insight!

 

[grouper therapy]

They decide how many will be in the tank !! try as you will but if the strongest only want themselves you could put a hundred in there and they will thin them out

 

[glxtrix]

Yup they kill each other. I had 9, now down to 2. I've seen them pick on the weaker ones. Not to mention they are terrible with transport. It's a shame, I love them! Oh well.

 

[jrocker1]

Don't forget about Barry the Giant Worm - a 4 ft bristle worm that was killing fish at night in a Cornwall aquarium. They had to completely break down the tank and apparently a few workers found their hands permanently numbed after touching it. They think it came in on live rock. Hope you won't have an issue like that .