Aquatic Plant Central - View Single Post

vim · 08-22-2009, 07:01 PM

Hi Roy,

I think you're spot on with the phosphorus deficiency.

Unfortunately additional PO4 accelerates growth quite rapidly and even new leaves on the Elodea are white.

Water here should contain 16ppm Ca and 6.5ppm Mg. Does this sound like enough?
1.2ppm Mg per day for a week produced no discernible change.

EDIT: oh. I'm seeing no drop in hardness between water changes. Would a lack of Ca/Mg show as a drop in General Hardness?

08-22-2009, 07:01 PM	#6 (permalink)
vim Junior Member Join Date: Apr 2009 Posts: 6 iTrader Ratings: 0 Plant Points: 1150	Re: Glosso Deficiency Identification Hi Roy, I think you're spot on with the phosphorus deficiency. Unfortunately additional PO4 accelerates growth quite rapidly and even new leaves on the Elodea are white. Water here should contain 16ppm Ca and 6.5ppm Mg. Does this sound like enough? 1.2ppm Mg per day for a week produced no discernible change. EDIT: oh. I'm seeing no drop in hardness between water changes. Would a lack of Ca/Mg show as a drop in General Hardness? Last edited by vim : 08-22-2009 at 08:24 PM. Reason: ps