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Originally posted by ObjectZero
Do you know what kind of african cichilid you have? Oscar, Firemouth,Servum, Jack Dempsey, Kenyi, Electric yellow lab, Electric blue or Demasoni. There are a few other but this is the normal range, for me at least.
Originally posted by smyleegrl
I have a 55 gallon brackish water tank in my classroom. The tank is established (18 months now). I use bacterial filtration, in addition to mechanical filters. We change approx 1/4 of the water monthly. The aquarium also has life plants.
The fish are assorted African Cichlids. On Friday of last week, we found the largest fish dead. I removed it and gave it a cursory glance; no ulcers, wounds, signs of ick or dropsy. It was too big to flush, so received a ceremonial burial in the backyard of the school.
After removing the fish, I tested the water for amonnia, nitrites, and nitrates. All in the healthy range. I then did a thirty percent water change, added some aquarium salt, and thought no more of it.
Today I found my second biggest fish dead. Again, nothing wrong with the body that I can see. I've been scouring aquarium websites looking for answers but thought my ATS friends might have a suggestion.
All other fish in the tank are active and appear healthy. We are down to six fish, the largest of which is about five inches long.
Any advice would be greatly appreciated....it's upsetting my students and me.
Originally posted by smyleegrl
reply to post by AnonymousCitizen
I use dechlorinated water from the store, though. So I don't think that's it.
Originally posted by Thurisaz
reply to post by usernameconspiracy
when we had the tropical tank set up, we were watching it like a tele cos the gupies had babies and I put the special mum into a separate container and when the babies were big enough, let them out and it was like a horror movie, some of them got sucked into the filter and most of them got eaten by the other fish, all of us were standing around, yelling... NO!! and then afterwrd just looking at each other lost.
some did manage to survive hiding in the pebbles.
In addition, there are some things that will increase your fish's risk of disease. Once a fish becomes sick, the population of disease organisms in the tank increases, and the health of the pathogens also increases. This makes it harder for other fish to resist the disease. For this reason, it is important to remove any sick fish to a hospital tank as soon as you can see signs of ill health.
At this point, it is a good idea to see if you can figure out what caused your fish to become susceptible. Check the points above for some ideas.
Also, if a fish dies in your tank, it is important to remove the body immediately. Not only is the body of the deceased fish contributing to poor water quality by decaying in the tank, but a fish's chance of contracting a disease is many times higher if it eats a fish that was already infected - or worse yet, one that died from the disease!www.firsttankguide.net...