Update:
I put some eco earth in the tank just to find out later that it had been sitting in a box full of spilled reptile enclosure cleaning chemicals
I immediately took as much of it out as I could but since it was very wet when I put it in then it had already soaked into the dirt. I decided to go the risky route and see if I could lift up the rock the Abdo-lemons were living under and corral them into a tube, then clean up the tank a move them back in. When I lifted up the rock though, I soon discovered that they had a lot of tunnels leading to many different chambers, and that there were a lot of ants and brood. I then left everything alone and decided to just let them live in the tank and see if anything happened to their health. Fast forward an hour, they had built lots of new tunnels and chambers and I could see the brood from under the tank, then I left for another hour or so and all the brood was gone, I could see lots of workers digging in various places though. I noticed that they were digging a tunnel to a pat chamber that they used to live in, and it looked like they had already broken into it, but then, I decided to do something stupid. I poured a little bit of water down the hole hoping that ants carrying brood would come out and that would solve the mystery. But even though there were a lot of ants going into this tunnel, when I poured the water in then no ants came out, I was so worried that by pouring the water in then I had closed off the tunnel and trapped the ants in, and that they were drowning, even the queen. I watched the tank for an hour or so after this and finally decided to scrape dirt away from the entrance to this tunnel, and it revealed that the tunnel I had poured the water in had another tunnel attached to it that led to the main chambers and an area that I with even more chambers I had never seen. So I had not drowned any ants, they just took a detour when the water came in, either that or they just were never in the chamber I was flooding in the first place.
So there you have it, that is what I spent my sunday doing
Ps. I took this opportunity to redesign the tank, how do you like it?