plantnoobdude
Member
I would suggest not adding the edta. tenso's fe:mn ratio is 10:7. I would suggest raising yours to atleast 2:1.Unfortunately the salts for DIY micros are extremely hard to come by in small enough quantities in Australia to make it viable. I have switched over to Yara Rexolin (same manufacturer as Tenso) and added in my own nickel. I am also using 13% EDTA Fe to add a different chelator (Rexolin is DTPA) and keep micro numbers down/closer to tenso numbers.