I have a 20g JBJ cube AIO and decided to go out of town for New Years. I did a water test before I left and everything was close to NSW. I just got home and noticed my Fairy wrasse is gone. I cant find any trace of them, Im thinking the hermits may have eaten them before I got home. As unfortunate as that is I have just lost 7 or 8 corals this weekend, and the only thing I can see out of balance is ALK and PH. Alk is 2 to 5 dKH and PH is 7.8, which is EXTREMLY low. I dont know what could have caused this, I use RODI water and top off with RODI water. Could a fish dying have caused this or is there a much bigger problem at hand?
EDIT: such a large swing on the ALK because the Red Sea Test kit doesnt show very well when the titration begins vs when the solution is saturated enough to start testing.
EDIT: such a large swing on the ALK because the Red Sea Test kit doesnt show very well when the titration begins vs when the solution is saturated enough to start testing.