how much lighting is too much for shrooms? I had some under 65w of PC in a 30tall. That were doing 10x better than in my 112 with 175w 10K halides and VHO actinics. I put them on the sand and they just wouldnt grow.
The thing is if it was more than 1 for 70 id would do it but they only have one for 70 inside a clam shell. If it was a cluster of them for that price it would be more worth it...