1. I top off my tank every other day...I have a 25G SWFO tank with four fish and 7.5# of live rock. What's the best way to pour in the water? The reason I ask is because the last time I did it, one of my fish probably got doused with fresh water (which may have been slightly colder), sank to the bottom, and stayed there for several minutes breathing heavily. Miraculously, he survived!
Also, are there vitamins/supplements/trace elements I could add for the fish in my tank?
7# live rock
2 clowns, a royal gramma, a clown goby, and a banggai cardinal
1 cleaner shrimp
blue, red, green crabs
nassarius, astrea, black turbo, margarita snails