Does your tank have a canopy (or will it)? If so being and being a big DIY nut, I'd suggest retro fitting, it can knock of a big chunk of change and get you right to halides.
#ed_op#/P#ed_cl##ed_op#P#ed_cl##ed_op#/P#ed_cl##ed_op#P#ed_cl#aha FOR ONE TIME I GOT AHEAD OF YOU#ed_op#IMG onmouseover="this.style.backgroundColor='#C6D3EF'; this.style.border='1px solid #3169C6'; " style="BORDER-RIGHT: #3169c6 1px solid; BORDER-TOP: #3169c6 1px solid; BORDER-LEFT: #3169c6 1px solid; CURSOR: pointer; BORDER-BOTTOM: #3169c6 1px solid; BACKGROUND-COLOR: #c6d3ef" onclick="InsertImage('/richedit/smileys/7.gif');" onmouseout="this.style.backgroundColor=''; this.style.border=''" src="http://www.captivereefing.com/richedit/smileys/7.gif" align=absMiddle#ed_cl# just had to do it i don't get to often#ed_op#IMG src="http://www.captivereefing.com/richedit/smileys/Shocked/6.gif"#ed_cl##ed_op#/P#ed_cl##ed_op#DIV#ed_cl##ed_op#/DIV#ed_cl#