Tank Flood and Kalk overdose..

[One_Divided]

Well I woke up at 3:30 AM to see water pouring down the edges of my tank, on to the floor.. I guess something clogged the overflow.. To make matters worse, my auto top off poured in about 2 gallons of kalk water.. Some of my corals look fine but several of them are half closed and sliming a bit.. I figure I will do a water change and hope that everything is ok. Any other suggestions? I opened up my return valve and the system seems to be running as usual.. I will keep it further open from now on and put up with a bit more trickling noise..


Grrrrr!