04-21-2004, 07:37 AM
Join Date: Feb 2004
| | High GH & Iron???
I thought I read here one time about certain nutrients blocking the uptake of other nutrients. Specifically, high magnesium blocking the uptake of iron. Has anyone heard this theory before??
I have a 29gal., DIY C02, 3.29 wpg, and moderate fish load. My GH readings are off the scale, around 17deg, KH is 7, and PH hovering around 7. Nitrates at 5ppm, Phosphate at 1ppm, potassium I have no idea. I dose nearly 5ml of seachem iron a day, but my plants are still growing in pale. I l also have seachem root tabs under each plant. I dont dose water column ferts right now because of a slight algae bloom/ cloudy water issue I'm trying to keep under control.
I'm wondering if the high GH is inhibiting the uptake of Iron, thus making my plants new shoots grow in pale/ yellow??