You have 5 wpg? Did I read that correctly? If so, I would go for about 1-2 wpg at most..

That is WAY too much light. While crypts can take more light than folks think, I think this is too much. Try shading it a bit more...........

I use 450w of mh for my 180. Crypts are okay under the light, but grow TALLER when shaded a bit.........

Also, please advise on your EI dosing amounts/schedule......