Hehe, I just sat a Dr.Pepper bottle by my tank, and my fish is loving it! XD
I always move the objects outside the tank everyday, and sometimes it's hilarious to watch him investigate the new item!
As for the brightly colored stuff, your fish will get used to it, I use neon green poster board outside my tank, and he pays no attention to it. Never paid much attention to it when I put it up :P
Last edited by TaylorW; 12-13-2010 at 10:03 PM.