My pond in IN is about one acre when full and about 3/4 acre at the end of summer when it has been rather dry. For a dozen years I had LMB, BG, CC, FHM, GC along with 20 KOI and 6 Israeli carp that died last year from winter kill. With the CC, KOI and Israeli carp I had perfect FA control. The CC had a mossy taste so we didn't eat them.