Calcium deficiency in Amazon Sword?

"Anton" wrote in message
e.rogers.com...

NO3: undetected
PO4: 5+ppm

Any ideas to save the Sword (and onions) are much appreciated!

Thx,
Anton

Hi Anton

The most obvious would be that your plants are starving NO3: undetected
With PO4 levels at 5ppm you should be adding Nitrates (10-15ppm). Plants
need Phosphate in order to take up Nitrates, if there are no Nitrates in
abundance for the plants then you have a huge Algae party on your hands.
Also make sure that your CO2 is cranked up when you add the Nitrates

The Onions should come back if the conditions are rectified, so should the
swords.
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**So long, and thanks for all the fish!**