I have been adding 5ppm PO4 3 x a week(as KH2PO4) for the last few years on this tank:
Never had any algae issues.
PO4 should never be an issue, this is true for non CO2 as well as CO2 enriched planted tanks.
In other words, you are doing something else wrong if you think it's PO4.
A good myth is hard to kill.
Particularly on the internet.



Never had any algae issues.
PO4 should never be an issue, this is true for non CO2 as well as CO2 enriched planted tanks.
In other words, you are doing something else wrong if you think it's PO4.
A good myth is hard to kill.
Particularly on the internet.