Strawberry cough (with MG fert)

Just planted clones. First grow with a decent light. Planning on a 3 day cycle with miricle grow (dilluted). When i start day one will be fert/water, day two is just water and day 3 is for a dry out. I read it in some book years ago and had decent results with cfl bulbs hung in the closet from extension cords lol. Ill be adjusting things as i go and see how the plants react. I grow loads of other plants (veggies, flowers, houseplants etc.) Thanks for any advice or comments in advance