ktrandc
Premium Member
I have a bottle that's past the expiration date. I was wondering if I use this bottle if there would be any harmful effects on my reef tank. I've been told that regardless of live or dead, the phytoplankton will be consumed by the fishes (like that Kent stuff which is not live). I've been using it for weeks and there hasn't been any negative effects but I figured I should ask to be on the safe side.
Thanks.
Thanks.