Ive had this clone in my chamber for 2 1/2 weeks now, and up till this point it was doing great. Now tho, for some reason the tips of most of the leaves are browning and turning crisp. Its lit with 2 15w Helical CFL's and i change the water in the cloning tub every 2-3 days. The temp is at a constant 78.9F with the humidity ranging from 45-75%. Thanks for all your input and advice, its greatly appreciated.
My first thought was nute burn. But you shouldn't have much, if any, nutes in your cloning solution. What's in the "water" that you're using?
Theres no nutes in the water. Its just plain bottled water. A P.H test is pending and ill post the results later.
I dont see how it could be heat stress tho it only has 2 15w CFL's on it, well 1 right now cause the other lamp i had is on the fritz.