Hey guys, How do you feel about Hagen test kits? I picked up NO3, PO4, pH, and Iron all for $5 on a clearance rack. I just want to make sure they are reliable b/c they are telling me what I want to hear;) BTW....Thank you Scott. The metered syringe works great (TMG). Sometimes the common sense stuff just needs to get pointed out........ TIA, John Wheeler