Users who purchased the original GroTube may upgrade to the new GroTube XL at a deep discount.
Amazon Product Page (link coming soon)
The original GroTube is only upgradable until 9/30/2015, so don't delay!
P.S.
If any U.S. buyers are interested in trading in your non-byFormica formicarium to receive discounted pricing on the GroTube XL, let me know via private message or by replying here. We'll only consider a trade-in program if there is interest.
Edited by drtrmiller, April 2 2015 - 7:01 PM.