Call me ignorant, but I've never, ever, ever seen a 250w 20k bulb. I know coralife makes a 175w'er and Radium makes a 400w'er, but never seen a 250w'er.
yes they make the 250w 20K check marinedepot.The 400w radium bulb is too much light.The tank is only 13" tall.It's listed as 20,000K German 250w $119.00 reguires HQI ballast.What brand of bulb is this Radium?