Urea In Osmocote

KrangDog

New Member
Jul 20, 2020
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Australia
Sorry if this has been discussed before, but I've been unable to find an answer.

I'm looking for some Osmocote or similar to use below things like erios, Dennis Wong style. Unfortunately, Australia has different offerings to the US and I'm unable to get hold of Osmocote Plus Outdoor & Indoor for a reasonable price.

I've found a few options that may be suitable, but all contain varying degrees of urea. I've seen comments here from people dosing urea directly into the water column, but wanted a little more info on the risks/benefits of urea in an aquarium.

Here's one of the options, Osmocote Pro.

17% TOTAL NITROGEN (N)
6.5% nitrate nitrogen (NO3-N)
8.8% ammoniacal nitrogen (NH4-N)
1.7% urea nitrogen (Ur-N)
11% PHOSPHORUS PENTOXIDE (P2O5)
8.3% water soluble
10% POTASSIUM OXIDE (K2O)
10% water soluble
TRACE ELEMENTS
2.0% MAGNESIUM OXIDE (MgO)
0.33% Iron (Fe)
0.06% EDTA chelated
0.04% Manganese (Mn)
0.037% Copper (Cu)
0.02% Boron (B)
0.015% Molybdenum (Mo)
0.011% Zinc (Zn)

It seem's similar in raw amounts of nutrients to Osmocote+, but obviously has the urea present. Any thoughts?