i've read and read, and read some more. so far the pro vs cons in this gives the pros the lead. Out side of green water or sliming, there really isn't much bad. Of course i'll watch my paremeters better but i should do that any way. I'll be posting pictures of the before and after when my experiment as shown some type of result. And a message to randy mainly but any one who might can help would be nice, What about adding to fresh water tank to lower stress. I have an african cichlid tank and when a fish gets bullied alot i end up with ick. Might vit. c help control the ick problem from stress? Thanx guys. This thread has successfully ate my recent life. Good job to everyone for one of the most successful threads i've ever seen