FraserNZ Posted May 2, 2012 Report Share Posted May 2, 2012 Today I went into my garage to find that two of my Shellies had both died over night that were otherwise heathy and happy the night before. I can't for the life of me think what could of killed them?? The tank was a 30L running a ehiem canister filter, and an ehiem 100w heater. My first thought was that maybe I pulled out the heater my mistake last night as I was playing around with the tank next to it last night. But no, the water was at the correct temp with the filter running. The only thing I can think of that may have killed them was that I left the presurized CO2 system on the other tank running without the timer cut off as I'm trying to propergate glosso in it. Would this have put enough co2 into the garage to kill the fish in the tank next to it? It’s a bit of a worry if so!! Quote Link to comment Share on other sites More sharing options...
antwan Posted May 2, 2012 Report Share Posted May 2, 2012 No that's definitely not would have killed them. No chemicals added or anything lately? pH still the same? Quote Link to comment Share on other sites More sharing options...
phoenix44 Posted May 2, 2012 Report Share Posted May 2, 2012 I think it may have been the CO2 because it's only a 30L tank. My shellies died when I did a simple WC with normal soft water. Quote Link to comment Share on other sites More sharing options...
FraserNZ Posted May 2, 2012 Author Report Share Posted May 2, 2012 No, was just about due for a water change. Will check the PH in a second to see if has changed though. The CO2 was running on the tank next to it, not the tank with the shellies in it? Quote Link to comment Share on other sites More sharing options...
phoenix44 Posted May 2, 2012 Report Share Posted May 2, 2012 Lol just read it properly. you can rule CO2 out as a COD ahah Quote Link to comment Share on other sites More sharing options...
Sunbird73 Posted May 2, 2012 Report Share Posted May 2, 2012 It was cold last night, and a small tank, maybe the temp fluctuated too much before the heater clicked on again?? Still, quite weird, I wouldn't have thought even that would be enough to lose them both at once. Unless one died first for whatever reason and caused an ammonia spike for the other (but again, wouldn't think it would happen overnight?) How long had they been in the tank for? Bummer, that does suck :tears: Quote Link to comment Share on other sites More sharing options...
FraserNZ Posted May 3, 2012 Author Report Share Posted May 3, 2012 Yeah it was really the other night so that was my first thought. However that tank was fitted with a 100w ehiem so I doubt that would of had any problem keeping the tank above 25c even if the temp in the tank dipped down to 20c I would be surprised it would of killed them. Having said that it did get down to around 6 from memory? :tears: Quote Link to comment Share on other sites More sharing options...
ryanjury Posted May 3, 2012 Report Share Posted May 3, 2012 I can't really help with what killed your shellies but I have always found them to be very tough and even from fry have done 20% water changes from the hose on their tanks with no losses.. Quote Link to comment Share on other sites More sharing options...
FraserNZ Posted May 3, 2012 Author Report Share Posted May 3, 2012 I can't really help with what killed your shellies but I have always found them to be very tough and even from fry have done 20% water changes from the hose on their tanks with no losses.. Yeah well they seemed very tough up until the other day... Over summer I forgot I had unplugged the heater whilst I was rearranging the tank, they went without heat for 2 days without a worry! Quote Link to comment Share on other sites More sharing options...
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