Actually just regular API Melafix, not the marine. The only difference between regular and marine is 0.25% more tea tree oil. The pond Melafix is 5%, which is just more concentrated.
The recipes are;
- Marine (1.25%) -- 50mL/g @1.25% = 50mL/g
- Regular (1.00%) -- 50mL x 0.25 = 12.5ml, add that to the 50ml to get 62.5mL/g
- Pond (5.00%) -- 50mL/5.00 = 10mL/g
This dip is a 5-6 minute process. I wouldn't go past 6 minutes. Best to dip on a tray that you can put in and remove all at once, or, place all corals in the container in which you will pour the dip solution. Moving corals can be time consuming, and frankly, as much as I really like this dip, I can't stress enough how important it is to watch the time.
I will say that bayer is easier on the corals, but Melafix seems to be especially tough on flatworms and stars. in high doses in a short dip it nukes everything on the corals, and the corals are fine. At most, some of the corals slime a little. but going from tank, to dip, to clean SW rinse 1, and second rinse... They could just as easily slime up from handling.
If you have AEFW, I would definitely suggest looking into melafix. It's tough on AEFW, much more than bayer in my experience. Just make sure to watch that timer. 5-6 minutes.