Regric, you should have plenty of light in that tank for the galaxia. I had one in my 75 with only 4 T5's and it grew like crazy about midway up in the water column. Just as a precaution though. Once it is fully healed be sure to give it plenty of space because they have some super long sweeper tentacles that will sting the crap out of anything they touch! Thats what mine started doing so I had to find a spot with more real estate. Good luck!