OK, I thought this was funny, so I figured I'd share. Right now I have a 10 gallon QT set up with about 5.5 pounds of live rock and a Coral Beauty Angelfish. He has been healthy and happy, and I can't wait to get my 46 set up so he can have some more room to swim.
Anyway, I have been using treated tap water thus far, for water changes and topoffs, and noticed something funny. It used to be that when I poured the evaporation topoff water in, my Coral Beauty would hide behind the rock. Since I bought a gallon of RO
water at the local grocery store and have been using that for my daily evaporation topoffs, he swims right up as I am pouring it in and swims right through that cool "cloudiness" when you pour freshwater into saltwater.
So not only did I find that entertaining, it also doubled my determination to use only RO
water in my new aquarium. It seems he can tell the difference and obviously likes it better! hehe!
PS - In case you were wondering, my ammonia and nitrites are 0, nitrates 20.