Plant partial harvest in wk 2 had already showed that fish FF helped for plant growth since plant WG increased with FF, namely,6d1> 4d1> 2d1 in both wk 2 and wk 4. In wk 4 while the whole plant was harvest, 6 d1 had 11% and 6%moreWG than 2 d1 and 4 d1 , respectively.