Thank you so much. I know they are really pricey...more than the danged tank is, and that in itself is spendy! lol Might be summer before I can cough it up. But I expect this tank to last us quite a few years. But I like that the leds seem to save money in the long run. Plus our tank will be right next to the couch so it will be nice to not have the heat radiating off it onto us. And I like the different colors. Looks like the MH clip ons are just one bulb. Ill see what the company emails me back tomorrow and Ill post. If I cant make a LED system work, I can always get the MH clip on posted earlier in the thead. That viper looks pretty cool. Ill also call the Neo Nano guys tommorow and get an exact distance of how high up from the water the back of that tank is. The biggest thing is that I wanted to make sure that the LEDs would be okay for corals and clams.