Seems to be varying opinions, however for me, if my tank is not doing well and there is little growth, there will also be little PE. If I get conditions right & good growth starts, there will also be good PE.
PE serves several purposes, one of which is resperation. If there is good growth, there must be metabolic activity & therefore resperation.
Anyhow things looking great Puttputt, whatever you're doing, keep doing it!!