Im hoping someone can help me with this. I have pretty much every Hanna checker they make and I tested with t phosphorus and phosphate ULR checkers and phosphorus came out to 99 which is according to the conversion chart .304ppm phosphate and the phosphate checker gave me .06.... so what do I believe here and this is a problem I've had with these 2 checkers for a while. Now i have been having issues with the tank but my ICP says its basically my trace elements thats the issue. So should I ignore the phosphorus thats crazy high or freak out and use phosphat-e and get it down? I dont understand how these 2 can be so different. Please help. Thanks