plantnoobdude
Member
At the moment I'm fairly sure my tank has an Mg deficiency. I'm dosing 7ppm during my weekly water change with pure RODI water. none added during the week. my tank shows slow growth and crinkly leaves in certain plants, ludwigia palustris and the hygrophila polsyperma I added as an indicator plant. I have decided to up Mg to 10ppm during my weekly water change. Ca will be 30ppm and Mg will be 10ppm from next week.gh will be 6.3 if that fails I may start supplimenting Mg during the week via a separate solution. my question is how much should i start with, 3ppm? 10ppm? i can't find any info online. would trial and error be the only way? cheers