:thumbsup:Thanks for the replys. It is not pollen that is for sure plants has hudge buds on it.

I should have mentioned the plants were in flower right now and have been for 5 weeks. I am getting awesome buds, in spite of the nute burn problem and this white powder.

I will try the mix and spray real well and then when I am finished flowering I will bleach room and repaint, just to be sure get rid of it all.

Does anyone know where it comes from how do I get it in the first place. I keep a very clean shop.

This white powder has not effected the bud production, at least i do not think so.
Will keep you posted.

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Sully