I'm not an expert on deficiencies but it seems odd that you would have any trace deficiency with mts. My guess it that it's a CO2 deficiency. One species of crypt that I have has curled leaves too. It's in a part of the tank that gets more light from outside the tank. The problem improved when I upped the CO2 and circulation. I know its not a trace problem in my case as I dose CSM-B every other day.