i dont think the temp is up from 30celsiou maybe!in the night that the lights are on the temp of the house is 15c maybe, i dont think 3 cfls of 27wat eack can take temp to 30+ from 15c!this is only on two leaves nothing worying but i will keep an eye on it!the fact that the problem was shown after i provided nutes got me saspicious about nute burn!