Should i use the same as they use in tomtao plants 10-5-13, i also have a 7-1-5. Its for 6 weeks old plants, I have topped some of the plants and prun some of them. All of the Malawi Birds Eye got purple leafs, some other are starting to get yellow/light green leafs. I gave them a litle of the tomato plant nutrient (10-5-13) and the one with yellow leaf seems to be better. The soil dont have much nutrient in it, its for cactus and i have used perlite and vermiculite (about 4/6 soil, 1/6 perlite and 1/6 vermiculite)