[2manyhobbies]

Hello Everyone and, again, thanks for all of your very helpful suggestions.
The pink coraline algae has yet to reappear. Still watching it, though.

Here is a new problem and I hope you can help!

I mixed up some new salt water, using ro/di water(TDS= 1). I have two coralia pumps in the barrel as well as a 200 watt heater. I mixed in 14 cups of Bio-Sea Marine mix in 30 gals of water. I did 7 cups one day and 7 the next. All seemed fine until I went down to retrieve 6 gals for a water change. The water was cloudy and I couldn't see the bottom. I went ahead with the change (knew I shouldn't, but!). Later I checked the tank and all of the zoanthids had closed. Also some of the snails and hermits have stopped moving. I checked the mixing barrel and it had an almost electrical smell, like when an appliance shorts out.

Did I really screw up the system? Fish are fine and feeding normally. Please let me know what you think. All other tests for Ammonia etc were zero. Calcium at 450.

Thanks