What kind of substrate do you prefer?

I have used newspaper, paper towels and aspen.

Right now they`re on aspen and I wouldn`t have it any other way to be honest. Cleaning time can get pretty nasty when they`re on paper towel or newspaper, but spot cleaning with aspen is like, 1,2,3!

Blue scott paper towels

I use newspaper in my RBI rack with no issues...it's actually easier, cleaner, and cheaper. I use aspen in my one tank and my quarantine rack.

Newspaper - Best way to go with racks IMO. Like everyone is saying its cheaper, cleaner, and less time consuming.

Aspen is a great if you do not want paper as a bedding though.

I use Aspen Sani-Chips. I like it because I can spot clean it, plus it is cut up so small that if it is accidentally injested, it won't stick or cut their mouth and is easier to pass through their system.

Is there something wrong with cypress mulch from like, home depot? I looked at those sani-chips and its like $20 for 2.2 cubic feet after shipping (don't know where I'd buy it locally), whereas 2 cubic feet of cypress mulch is $2 at home depot.

i pay like 13 $ with shipping in national pet pharmacy for sanichips... and they actually (i believe is bug on page) charge You only 4.95 for shipping up to 47 cases :O:rofl::rofl::rofl:

EDIT:

Native Earth Aspen Sani Chips 2.2 Cubic Foot Bedding
2.2 cu ft (1006228101)
Shipping 992 lbs to zip 11222: $4.95 :O
Total: $418.08
You Saved: $432.40 today!

Un-printed newspaper :D:D

I used aspen when I had tank setups but when I got my RBI racks I switched to paper towels.

I use what BHB uses - Sani-Chips. Works great, lasts long with spot cleaning.