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Post by baconnlegs on Dec 9, 2014 6:08:42 GMT -5
The Short: I've lost at least 7 fish in less than a week, starting to lose track at this point. Fish show little to no symptoms before keeling over dead.
The Long: last weekend, I purchased 2 kuhli loaches from a LFS and added them to my long-established 10g.Then, I moved 1 existing fish (female betta) to a 29g, and took several danios (Glofish, pink, gold longfin) from the 29 and moved them to the 10. Overnight, both new purchased fish in the 10 died (thought it could be an acclimation issue at first). A few days passed. Slowly, one by one, I've lost most of the danios in the 10. 2 seemed to hang out by themselves the day before I found them dead, but most would actively swim with the group. All have shown healthy appetites right up until I've found them dead. The danios have shown no outward signs of disease - scales normal, no parasites, finnage normal.
I also lost 2 female bettas from the 10, within hours of each other (the third, which was moved to the 29, is fine). The only symptom I noticed on one betta was a very slight swelling of the abdomen (as if she had just eaten a good-sized meal), and a loss of iridescence on one side of the belly. The fish was black with green/blue shimmer, and a portion of the belly and part of the fin connected to it lost its shine, and was just flat black.
I have no idea what's suddenly killing my fish, where it came from, or how to treat it. Here are some tank stats:
10g
Currently housing 4 amano, 1 ghost shrimp, 2 danios, 1 mystery snail, 2 fork tail furcata Rainbowfish, 1 kuhli loach.
Temp is 76F, filtered with Aquaclear mini
Well-planted (bamboo, java fern, anubias Nana, subwassertang)
Water quality is normal (30% changed every week)
1 tsp marine salt per gallon
*Current treatment: 50% water change, followed by 1 tsp Melafix per day for one week.
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Post by Darren and/or Sarah on Dec 9, 2014 10:39:50 GMT -5
Why you killin all your fish Sarah?!?! =/
The 10 gallon is the one in the living room right? Maybe something got into your water...aerosol or something...like if you had been cleaning? Have you done a water change since these guys started dying just in case?
Sarah
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Post by jred on Dec 9, 2014 12:58:26 GMT -5
Sorry to hear about this loss, never fun when fish start to die for no apparent reason. Have you checked the water parameters lately? Could have been a spike in ammonia or something. Another thought is your salt content seems very high for freshwater, are you mix 1 tsp/gal? The normal ratio is 1tsp/10gal for most, certain fish can tolerate more. If that's the case the deaths might be attributable to the salinity being too high and the new fish were not acclimatized to it. Hopefully you can figure it out soon, all the best.
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Post by baconnlegs on Dec 10, 2014 2:21:20 GMT -5
hor=" Darren and/or Sarah" source="/post/15816/thread" timestamp="1418139590"]Why you killin all your fish Sarah?!?! =/ The 10 gallon is the one in the living room right? Maybe something got into your water...aerosol or something...like if you had been cleaning? Have you done a water change since these guys started dying just in case? Sarah[/quote] Nothing unusual! The regular water change. Shouldn't be any weird chemicals, either (only vinegar to wipe the glass, clean the nearby stove and floors). |
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Post by baconnlegs on Dec 10, 2014 2:24:58 GMT -5
Sorry to hear about this loss, never fun when fish start to die for no apparent reason. Have you checked the water parameters lately? Could have been a spike in ammonia or something. Another thought is your salt content seems very high for freshwater, are you mix 1 tsp/gal? The normal ratio is 1tsp/10gal for most, certain fish can tolerate more. If that's the case the deaths might be attributable to the salinity being too high and the new fish were not acclimatized to it. Hopefully you can figure it out soon, all the best. Water parameters were normal before this  the salinity is probably lower, if anything, because I tend to under-measure. Something is going on, though, because I hadn't had a fish die in that tank...since last year, maybe? I don't know that I'd ever lost one from there. |
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Post by jred on Dec 10, 2014 9:03:08 GMT -5
Sorry what I meant was how much salt exactly are you putting in that tank? For a 10 gallon you should put only about 1 tsp total and then only add more if you remove water, because if the water evaporates the salt does not evaporate with it so if you continually add salt to buckets you use to top up the water level your salinity could be much higher than you think. If you haven't switched any fish around in a long time it could be that you acclimated the fish to a high salt content by slowly adding more and more salt which they became used too. Then when you moved them around, the sudden change shocked them and they died.
Another thought based on the sheen loss on the one side of you beta could be velvet disease. This disease much like others can lay dormant in the fish until a traumatic event weakens the fish and the disease is triggered. It is similar to ich in the sense that the parasite is on the outside of the fish but the pustules are so fine that you normally can't see them like you would with ich. The parasite feeds off the cells and kills them, thus giving the fish a dusty look or in your beta's case a loss of sheen. The other fish might have died from something else but maybe because you weren't looking for it or because they aren't as shiney as your beta but either way I would do some research and start treatment. I can't remember if melafix or pimafix is what you want to use but also turn off the lights of the tank as the parasite can also you photosynthesis to live as well as it will reduce the stress of the fish. I'm hoping that I am wrong on this one but just something to look into, cheers.
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Post by fishtastics on Dec 10, 2014 10:45:00 GMT -5
if both female bettas are in the same tank then they are killing eachother. in order to keep female bettas together you need at least 6 of them! as for your other fish, what are you using to clean the tanks? cleaner from your house can cause all kinds of problems have you used your net? maybe something got on it?? even dust can cause problems in a tank! if its on the net, lid, can of food, or sticking your hand in the tank for cleaning can cause problems.! dont wash your hands with soap before sticking it in a tank just rinse it in hot water and dry well. hope this helps  |
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Post by zenins on Dec 11, 2014 7:33:36 GMT -5
I always recommend quarantining new fish for at least 2 weeks and a month is better.
I do partial water changes in there several times a week.
I have a 10 gallon tank running with a dwarf bristlenose pleco for just such a purpose.
Some fish keepers automatically give some medications to new fish in the quarantine tank to reduce the possibility
of disease or parasites, but I usually do not do that, any possible problems usually show up within a month.
Sorry for your losses ... ever since I had a similar sudden death episode of 15 fish in my 100 gallon,
I have been quarantining all new fish.
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Post by freshwater on Dec 11, 2014 10:20:25 GMT -5
weird problems that took me a bit to figure out. Electrical current in the tank, from a power head with a short. Use muti-meter to test your water. The second was a bad air pump, it was starting to melt the plastic on the inside of the pump. It was pumping toxic burn plastic into the water, now I disconnect the the air hose at the pumps every once and a while and smell the air being pumped out to check that it smells fresh and clean. Just some ideas, hope you figure it out.
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the salinity is probably lower, if anything, because I tend to under-measure. Something is going on, though, because I hadn't had a fish die in that tank...since last year, maybe? I don't know that I'd ever lost one from there. 
