There are different forms of Nitrate/Ammonia. Urea is a form of ammonium
which comes from fish waste and jobes stix and soil. Algae loves Urea, so
limiting phosphate is a waste of time as its the urea or other forms of
Nitrogen that algae love. Plants need phosphate to survive healthily,
limiting phosphate = limited plant growth. Plants can utilise different
forms of Nitrates, and so can algae. I suppose urea is more easily digested
than NO3 as far as algae is concerned, this is why we are dosing KNO3 and
not Urea, sorry I dont know the elemental abbreviation for that form of
Nitrogen.

I'm sure this post is confusing, I'm speed typing at the moment. I'll
clarify the above mess tomorrow when I'm of sane mind.
--
**So long, and thanks for all the fish!**



"Nemo" wrote in message
...
" wrote in message
om...

I commonly dose 1ppm of PO4 [ ... ] Adding more is not going to give you
more algae or
plants beyond their intital needs/storage.
Algae need far less nutrients than the plants do also.

N:P ratios for aquatic plants= 10:1. FW algae= 14:1.
More PO4 will favor the plants.

[ ... ]

This is myth about PO4 = algae in planted tanks.

Now I am royally confused! I've been working very hard to control algea
through limiting phosphate. How is it done otherwise?

Thanks