Some Questions.

[Corbin]

Just somethings that cross my mind when looking at my tank.

Feather dusters, do the tiny little ones get as big as the ones you see at your LFS or in other peoples pictures. i have one that i have noticed gotten bigger and more colorful, but will it reach beyond a quater of a inch?

Hermit crab shells, is there a place i can get empty shells for cheap localy?

Could you use a grow light for a refuge that is 10k not 6500k. ive used both, currently its 10k still growing, is it just more benifical to have a 6500k bulb?

Thanks