Most deficiencies that distort plant leaves are CO2 deficiencies. Low CO2 in relation to the amount of light, therefore the growth rate, will cause several different distortions in various leaves. You can dose Equilibrium to get a few degrees of GH and eliminate calcium and magnesium as possible deficiencies. Then dose KNO3 and KH2PO4 in EI recommended dosages, and you eliminate any possible potassium, nitrate or phosphate deficiencies. If the leaves are still growing distorted, you can almost be sure you have a shortage of carbon for the plants - CO2, in other words.