They have been in my holdign ponds since Nov. It coudl be pH, it was quite a bit more acidic. That coudl explain burning eyes as well. I thought that as well. ALkalinity low in both places at less than 10 pppm here as well. Yes not temp. It got to 70 this weekend but water temp was still 48 yesterday and they make it through June in most ponds around middel GA.
Any type of heavy metals you think? ONly one I thought could cause direct toxicity might be copper. Why woudl copper be high though? Thanks guys that helps.
