Thanks for the info. I thought 1/2 cup would be the place to start but wasn't sure.
As far as why switch, the store I go to uses TM in their reef tanks. Maybe not the best reason, but it worked for me.
I have been using IO but LFS suggested I try Tropic Marin. My problem is that the box doesn't give you the formula on how much to add to the water. Can anyone help?? Thanks.
