What's in Flourish Nitrogen?

Hi all. Anyone know what exactly is in Flourish Nitrogen? I've been trying to use up my last bottle before switching to dry KNO3, but I noticed that it says it's derived from KNO3 and UREA.

I'm wondering if there's actually urea in there (and not some kind of bound derivative of it) and if it will cause algae problems with the EI method. I'd hate to be releasing a steady stream of NH4 via urea with this stuff...

Thanks,

 

I've got my dry KNO3 from Greg now so I'm going to switch back to that. I've been fighting algae in both tanks since starting my use of Flourish Nitrogen. One tank was crystal clear until I started adding it.

Seachem lists urea as on of the N sources, but I haven't had a chance to call to see if any urea remains in it after processing.

I can't say for sure that the Flourish N was the cause of my algae bloom, but my interest in now increased.

I'm going to let my tanks equliabrate to EI with dry addition, then I'll switch to the Flourish N to see if I get another algae bllom...

 

Well, that may be the problem. The directions on the bottle tell you how to add 1 mg/L of nitrate equivalent.

As Mike pointed out, you have to add significantly more than the recommended amount to get to EI methods.

For example, to add 25 ppm of nitrate equivalent to 50 gallons you would have to add 50 ml of Seachem FN three times a week. (since 5 ml gives 1 ppm in 40 gal per the label)

I have to say that I added significantly less than that amount because I wasn't comfortable adding that much.

I'm not saying that the FN did it, but the blooms did coincide with its use. It might just be a matter of dosing style. Perhaps the way to use FN is to add it daily as a lower dose than the standard EI method.