well i am breaking down my 125 soon and setting up just a 55g frag tank. My current lights are 2 250w MH. They are retro fit to my canopy over my 125. the 55 is going to be an open top and I plan on hanging the halides above the tank. I have heard that actinics help coral growth a lot and would really like to get an actinic setup on the new frag tank. But if I am hanging the halides where would I put the actinics? i had the idea of getting 2 of the lamps that clamp on to something. they sell them at office max and stuff. getting 2 of those, clamping them on both ends of the tank and using a 10 watt mini compact actinic bulb. would this work? what about just a blue flourescent bulb? is there a certain spectrum you need for actinics?