4 dead

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RDFISHGUY;1687877; said:
Fri evening I did a 50% water change and moved some rockwork around in my 230 gal. SAt at around 10 am I netted my fusco as he was dominating the tank. I took him to the LFS. Noticed my livingstoni was breathing a bit heavy but thought it was due to chasing the fusco around and ignored it. Came home at noon and he was still breathing heavy. No other fish seemed to be affected so I thought he'd come around. Big mistake! Came home at 5pm and found livingstoni , polystigma , otterpoint and lemon jake dead on the bottom and all other fish gasping for air. Nitrites:eek:! Several small water changes later all seems to be well again but if you notice something a little off ... investigate immediately. Don't let this happen to you. The likely cause- stirred up an ammonia pocket when changing rockwork-that coupled with the 50% water change (water contains chloramine) added ammonia which was neutralized by water conditioners but not removed by filtration. Lead to nitrite spike/ mini cycle. Makes me wonder how this happens with 2 FX5's on the tank. I changed out 95% of the water in my 50G (had to move it) and never had a problem. Same water conditioner and same tap water. But that tank is filtered by 2 AC 70's. I also did 50% on my 125 same day and cleaned out 1 of the 3 AC110's. No problems with these tanks. Not the first time I've had problems in the 230 either. A few months ago I had a similar problem but reacted immediately and never lost a fish. Why all of these problems with the 230G? Only difference is the type of filter. If this happens again I will get rid of the FX5's unless someone can shed some light on this situation.

Sorry to hear about the loss of your fish. I usually do a 80% water change once or twice a week and every time I do it I move all of the rocks and driftwood around and vacuum under them and then move them back. I then put new water back in from my tap and add water treatment and everything goes well so I'm very grateful. Hope maybe you can try it 'cause it might work for you too.
 
I had this before but it was a 29. It was a total wash. It killed everything. I tried everything. Even some stuff that is now illegal to buy and use and it did not help either.
 
80% water changes on a 230 gallon tank won't work .
#1 hot water tank can't handle it
#2 the rocks weigh about 50 -80 lbs each so I'm not moving them every week- but I did remove some sand and put the rock directly on the glass instead of on the sand to eliminate pockets of anaerobic bacteria.
#3 the tank is too tall to reach into the bottom all of the time.
#4 removing 80% of the water would be well below the filter intakes and I'd have to restart my filters PITA.
#5 I think removing such a large volume of water can often have negative effects because you are removing beneficial bacteria as well as dirty water. If anything I'll be doing smaller water changes from here on in because I have chloramine in my water. Which means every water change ammonia is added. I obviously add chemicals to neutralize it but the filter still has to deal with it. It doesn't just disappear.

I appreciate your response and if it works for you thats great but I don't want anyone to get the idea that the larger the water change the better because its not always true.
 
Really sorry. Don't know what it is, and would rather read about it than have.. Looks like bad news..
 
So much for a relaxing hobby. If it doesn't work out I guess I can start from scratch with new fish. I just hate losing fish I've had for a year and a half. I haven't given up yet there are still a few options to try but time is running out.
 
couple of months ago I bought a dimidiochromis kiwinge, within a week it developed sores like you say, especially on its bottom lip...it was biting my 2 female s fryeri and they developed the same sores in the same areas, I tossed them all and havent had a problem since
 
Throwing them out isn't going to help the hobby or anyone on this forum. In time this fish may die but in the meantime I am going to do all that I can to resolve the problem for the good of fellow hobbyists. Whatever this is , it isn't new and someone somewhere is going to get it again and I'd like to be able to tell them how to treat it. Maybe somebody already knows and has a link on another forum that somebody here will read post it to help others. The purpose of these forums is to help each other out and share our experiences. I thank you for taking the time to respond but I look forward to a better outcome.
 
Have you tried bumping up the water temp and throwing some more aeration in?
Sounds like some type of bacterial infection pet supply stores in your area may carry gram positive and gram negative antibiotics that may do the trick. Just my 2 cents.
 
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