Phosphate only removal, without using GFO

I dose iron supplement and control the PO4 .
So far PO4 level stay within the range of 0.02 to 0.1
I bought a DSR iron citrate supplement a couple of years ago and it seemed to work well at reducing PO4. The only issue was that shipping from Europe made the purchase a bit too expensive for my taste. Are you using an iron citrate or just iron? Is it DIY or off the shelf?
 
I bought a DSR iron citrate supplement a couple of years ago and it seemed to work well at reducing PO4. The only issue was that shipping from Europe made the purchase a bit too expensive for my taste. Are you using an iron citrate or just iron? Is it DIY or off the shelf?

FWIW, I don’t believe the citrate is important in that use, and a simple diy using ferrous gluconate from a drug store as Fergon tablets should work.
 
FWIW, I don’t believe the citrate is important in that use, and a simple diy using ferrous gluconate from a drug store as Fergon tablets should work.

Thanks!

Ya diy using Fergon tablets also work. And is cheaper

Would you mind sharing your experience on how effective Fergon tablets are for lowering or precipitating phosphate in your case? What is your mixing recipe and daily dosage for your system and how many total gallons is your system? Thanks!
 
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