I put 4 lbs FHM in pond Feb 8th, they are doing great and nothing else yet. I got 100 specklebelly and put in my big pond( 1.1 acre acre), and I also put 100 in another 1/4 pond that I got the first of Feb. I am shocked at how quick they took pellets ( within 48 hours) and in a month, already see growth. I cannot thank you guys enough for telling me about them they are great. I will be putting them in my new pond in April.