I'm on the edge of deciding on my next purchase. I have been drawn to carpets for some time now and am looking into possibly an IJ or a jungle, but have not yet completely decided.

I was wondering about heating a tub for a carpet. I've got an extra piece of flexwatt ready to go for a possible new addition. So say I got an appropriate tub that had some height to it for climbing. My question is: To get the proper temp gradient would I put the flexwatt on the side or the bottom? Or would I need a heat lamp or CHE on the top?