Yes I fully take your point Jimmy about the small colony and large nest, how ever, before I destroyed the last nest, I found a bunch of trash beneath the plastic plant leafs up in the foroging area, so maybe they will remember in this one. It would have been impossible for me to cut off a part of this nest, until their numbers grow, I guess that's one of the problems with this king of plaster nest set up.
Thankyou for your guidance in my quest to improve thier home..
I must say, since those photo's were taken, they have found the heated chamber and moved the queen and the intire brood from the top left to the bottom right, so they really do prefer the heat.
One last question, as my colony grows, which with cruentatus is slow, what capacity (of ants) can I expect my set up to hold? the demensions of the plaster nest are, 16"x6" each chamber is roughly 2"x1&1/2" with a depth of 1&1/2" with a foroging area of 16"x8"
Just an estimated guess would help me realise how far off I am to needing to make bigger thier home !! I know it will be months and months, but I am curiose how long they will be ok in this...

I don't envy the thought of having to move 100's of ants, lol today moving just 13 was stressfull enough..

...!!