 Re: Long term experience with PPS Pro?
Just tested nitrate and phosphate again. Found NO3 to be 20 ppm and PO4 to be .3 ppm. This is back to the same types of readings that I was getting before, so I'm not sure what happened last time. Maybe I didn't get the reagents shook up enough or something. Anyway, I decided to increase the KH2PO4 by 50% to see what type of difference that makes. Even though my Hygro polysperma is making a comeback, the oldest leaves are forming holes and falling off. Looking at the deficiency chart in the fertilizing forum, I'm not sure if I have a phosphate problem or a potassium problem (or both), but I figured that this might be worth a shot. I'm thinking since I've backed off on the KNO3 by 75%, I might be having more of an issue with the potassium, but I'm not sure. I'm working on getting a potassium test kit from Lamotte, but it might be awhile (they said they need ten days lead time to get one ready). Hopefully I can get one ordered soon and can then check my levels.
To follow up from last time, the Mayaca is growing some, but I think it might be too early to tell if it is truly happy or not.
Andy | 
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