I posted earlier about my WC '04 baby California Kings, which I was not quite feeding enough for proper growth rate.

I fed them again today (I was out of town for a week after the last post) - I tried popcorns (aka hoppers) as was suggested. They both took them.

Here's a pic -

Sorry about image quality - the camera is rather old and has some focus issues, and I didn't even bother with any color correction.

The medium they are on is rather red though (it's a mixture of that coconut stuff that comes in bricks, and desert blend lizard litter) but not as red as image portrays.