Fishes are dying off.

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R

rvmang

Feeder Fish
MFK Member
Jan 14, 2011
33
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Transmetropolitan
Four days ago I bought 10 small peacock cichlids, I've read about them on the net and it was stated that they're not too aggressive. So I mixed them in with my other Africans on my 380 gal tank. I don't really know if they have anything to do with the deaths of the other fishes. So one day after I bought them, two of them are dead, I don't know why, their heads are half eaten. A day after that I see a dead frontosa (still small) and a dead mono angel (please don't ask why I mixed them with the Africans) stuck on the pump. Another day after that I see an albino tropheus (much bigger than the peacocks, frontosa and, angel) dead along with another mono angel. Today another small frontosa and an African (I don't know the name) died. So far, the dead fishes don't have any bite marks or anything. I've been observing them and I don't really see anyone being overly territorial. I haven't had any problems until I bought the peacocks. I'm also doing water change right now.

TL;DR: Africans dying off in my 380gal tank after adding small peacock cichlids, don't know the cause.
 
Well, one suggestion I would give you is to quarantine any new purchases. I have learned the hard way myself. Also, what are your tank parameters (PH, Ammo, Nitrate, Nitrite). This might help us in determining what could of gone wrong other than aggression issues.
 
The fishes did come from a trusted seller, but I'll keep it in mind to quarantine future purchases. I don't really know the parameters, I've been meaning to go buy a test kit. But I have had the same setup for two months now, and I haven't done any major changes to the tank.
 
Water parameters can change due to the amount of fish you have in the tank (increased bioload). Also, what is your water change schedule?

I would suggest picking up the liquid test iet (API) from your LFS. It is the only way to know for sure that your water is safe for your fish. It will save you in the long run
 
I've had around 50+ fishes, none of them are adults yet though. Now it's just around 40+ fish. I do around 40%-50% water change every two weeks.
I think they only sell those Tetra ph testers in our local lfs.
 
Any water test is better than none so just pick up what you can find. Also, I am pretty sure you can order the API kit online and have it shipped to you. After you figure out your water parameters I would think about may'be increasing your water change schedule to once a week if the levels are bad. One last thing, what is your filtration on your tank?
 
Once you get your water tested, you will see if the filtration set up you have now is adequate. Maybe take a sample to your LFS and they could test it for you until you get a kit of your own.

What is the remaining stock in your tank?
 
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