..closer to the light:
Suction cups with hooks (yeah, yeah, you can't see them well thanks to overexposure, but it's the thought that counts) are the (this) Tall Terrarium Owner's duct tape: they can elevate your tank's biosphere to completely new dimensions.
I've used them here to fix five pots with Nep seeds/seedlings right under the tubes, and also to improve my n. bellii's tan a bit.
Tall Chinese teacups also work, as seen here with the n. sumatrana)
cheers, and don't forget: there's a suction cup born every minute! [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile_r_32.gif[/img]