In order to get to eat Spirogyra generated a large amount when water temperature goes up, it has been observed to 20 Rhodeus ocellatus kurumeus (S size 3cm) and 20 Acheilognathus cyanostigma (M size 6cm) after put in January 2012.
Seems to have had little effect, but it is necessary to skim by human power.
There was an article that says, if you plugged branches of black pine into the intake water of paddy, Spirogyra is exhausted in Monthly Modern Agriculture, August. I decided to try it in the biotope.
I put a branch in rainwater square mini biotope, killifish live in.
I've inserted eight branches in the biotope of the courtyard.
Will there effect?