Hey I know lots of you already know this but, If you are planning on getting florescent tube lighting you should hit up a hardware store first before spending money at a local pet store. I wanted some 18" 30 watt 5000k bulbs a couple of months ago. Petsmart , petco and tropical kingdom wanted 20+ dollars per bulb. Lowes hardware had identicle bulbs for about $6.00. Just throwing that out there