That was the point I was trying to put.
<<With the phosphates you start getting into algae problems >>
Like everything else in this water chemistry stuff there must be an optimum range for phosphates - below this they are a limiting factor for calcium utilisation and skeletal growth and above which the excessive amounts lead to algae problems ( if they rea
lly areb a problem in fry situations) Thank-you Julie for making us think. Obviously the whole question of phosphates needs looking at! I think the aquatic plant people have done some work on it.
Bruce Hansen ANGFA