Flower, you yourself have told me and others on several occasions that disturbing the sand that can release toxins that kill fish and now your saying that's not the case here? What happened to covering all the bases?
If anybody will concure with you then I'll admit I'm wrong but I don't think that's the case here. He does have a canister filter which would produce some oxygen. Not much but some. I don't think it would kill most of his live stock over night. They may be gasping for air at the surface and in major distress but kill? And disturbing the sand then putting them back in right away or not taking them out at all had nothing to do with it?
Hi,
Your advice isn't off, and you are correct, since you already said it, I didn't think needed to. Sorry if I came off as correcting you, I didn't mean it that way at all. I have a bad, bad cold, and I made my message a bit short. I even said, a canister and HOB alone would already be a lack of oxygen, and not enough gas exchange.
Without power heads, there isn't enough oxygen,
but now the original poster says he had power heads, not good ones, but any is lots better then none. I agreed with aaronconnell97 on not enough oxygen based on what was said, only a canister and HOB filter that was not plugged in... A spray-bar on the canister would help a great deal.
The toxins caused when moving rock take some time to accumulate, as in years of the rock sitting there completely undisturbed. Most new members don't have a tank even set up that long. That isn't the only reason for crashes after a move. Many folks decide that since everything is all broke down, it's time for clean up... well that clean up means they just washed away 90% of the good bacteria that was built on the hard surfaces and filter media.
So there could be many possible reasons for a crash after a move... You mentioned the disturbed sand, and I mentioned the lack of power heads...we don't know yet if our new member went on a cleaning spree.
