Originally Posted By: ewest
IIRC several of those studies cautioned about RES and PS in the same water but I think it was with BG present.


Any idea why this is? I have read the same cautions but have never really found a reason. I have heard RES out compete PS but that is all I have found. You would think it would be the other way around. I know of only a couple ponds that have both RES and PS in them though...