OMG WTF?!?

[daniella3d]

Could it be some chimical war from a coral or anemone? you cut off the pump and restart it, the coral or anemone get upset, released toxine in the water and that upset the fish?

If your fish were not breathing fast we can exclude lack of oxygen. That does not leave much? Can it be also some gas pocket from the sand, when the pumps restarted it released some gas in the tank just enough to upset the fish?

I would definitly put some fresh carbon.

Originally Posted by paddyob

Thanks for the quick responses everyone.

Appears crisis averted. But still remains the question... WTF?!?!