This is a second chambers to be add on to the CR-Nano. 

Setup instructions are also included. Most calcium reactors are a guessing game on setting them up. No more guessing! Read the instructions and dial it in for your tank. I answer email questions within 24 hours of receiving them.

Custom setups are not a problem... If you want different height or diameter tube, let me know as well. Fill out the custom form below and I will email you a price quote on your custom sized reactor.