Great feedbacks guys,

I am also have been using JBL Ferropol in my 2 feet tank (with JBL Aquabasis base fertiliser). I don't know for sure if other factors involved, but the moss in this tank looks much better than my other 2.5 feet tank dose with Hagen Nutrafin Plant Gro. I dose 3-4ml Ferropol (outer screw top) daily.

Best Regards