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Re: Aquatic Plants Digest V4 #1399

thanks for responding tom,

> My no3 isn't really being used- before I used to have to dose
> with kno3. I also dose the recommended amount of seachems K (should I be
> adding More?) Does anyone make a test kit for K and is it worth buying?
tom wrote:
Yes and no in that order.

How much K should I add in addition to the K2SO4?

tom wrote:
I would bet you would see a drop in the NO3 if you add PO4 from some
inorganic source(H3PO4, KH2PO4 etc). 0.2ppm is low and some kits get funny
down at that range. 

I have AP perfect ph 7 laying around, can you tell me if this contains H3PO4 
or KH2P04 (i'm not sure what those are or where to get them.) I use lamott 
kits for NO3, and PO4

Jeff Vamos
Cessnabum1 at aol_com