My bulb needs replacement so I figured I should probably replace it and the ballast. Where can I get an upgrade for the ballast and the bulb? I have a standard JBL 15 gal. Nano. I was also looking about a cool idea for using my nano now that I have a new tank. I was thinking of growing microalgea and maybe trying to get some sea horses. Another idea would be to have just sand and have some sand fish or maybe if I can find a small species of bat rays. Any cool suggestions other than the standard mini reef??