Was going to say, that first pic looks like worms. I was told if you are good with a scalpel, you can cut and remove them yourselves assuming it is only the one. More than 1 lump and it is vet time.

And @ SDA, which Chondro FB board? I'm a member of 3 of them and the pure GTP one is pretty awesome actually. They were very helpful to me. Just one guy who i wont name gave negative feedback when i used the 18x18x18 cube. The rest agreed with me that if you can get the security, humidity, temps etc correct, there is no reason it would be a problem. Just tubs are easier and cheaper.