I wanted to go T5 for a while but stuck with the MH really just so that I wouldnt spend anymore money on the tank. Im to the point where I simply want to try and enjoy it without any further expense. I would love to see the tank covered in purple algae though and its not growing under my 250 MH. I have tried the seeding method. Maybe now that its growing more in the sump it will lead to it growing in the tank.