I have a female rose haired (Grammostola rosea)
Tarantulas are petty low maintainance, my girl is in a 15 gal with peat moss and sand substrate. She has bark and rocks to climb on and two hides, one under her heat light and one in the wet end of the tank that is kept damp and where there is a tiny water dish she cannot drown in.
They can walk up glass walls so a secure lid is needed. A short tank is better since they can shatter if they fall too far of a distance and for this reason her climbing decorations are no more than 4 inches high.
Normally you shouldn't leave live food in with them but because her tank is rather large I can keep a few crickets in without worrying they might try and nibble on her, and I put a teaspoon of oatmeal for the crickets to keep them well fed. I've never seen her eat a bug by she cannot control herself and eats right away when I offer a thawed pinky mouse once a month.
Depending on size and the temperature they are kept at they may eat every day or less than once a month. The only mess is the left over shells of the insects, and as far as i can tell they dont deficate at all
but I replace the sand and peat moss once a year anyway.
I don't know if you plan on handling your arachnid but they can bite and the poisons of most species is a little less painfull than a bee sting. Some species also have irritating hairs (like the tiny prickles on some species of cactus) on their abdomens that can cause severe itching if on the skin or burning if they float into your eyes or nasal cavity so wash after handling and keep out of the wind.
__________ Fri Oct 18, 2013 8:08 am __________
You spider does have the hairs so be cautious about cleaning the cage and handling.
Texas Brown tarantulas have small coarse brown and/or black urticating hairs on their abdomen
http://en.m.wikipedia.org/wiki/Urticating_hairs