"Djay" wrote in message ...
After many googles on the subject, I decided to try and dose PO4. I had
little growth and poor nutrient uptake (read algae) in my 70 gal pressurised
CO2 high light tank. Nitrate remained high all the time and no real
pearling...

As I said, after reading multiple NG on the dosing of PO4, I tried it today.
Slowly at first etc.
Immediate change in the pearling of my plants. Holy cow!

Anyone have similar results? I plan on dosing twice a week.

DJay

Yes,.
It does work if there's enough CO2, NO3/K and traces.
If not it won't help.

Often you see a response in 40 mintues to 2 hours.
General uptake in a well planted tank: about 0.2ppm a day ot more.
Note: some can be "luxury uptake" rather than solely what the plant
needs for growth and maintenance.

Regards,
Tom Barr