So, to update everyone.
Still willingly eating red earth worms, no more hip bones showing. I have tried some massivore and carnivore pellets presoaked, he is not interested, also, tried market shrimp and tilapia cut up very small mixed with chopped earthworms, not interested in those either.
I have, however, gotten him to eat some previously frozen krill. I soak them in tank water, then feed. However, I don't know if these are more filling than earthworms as he usually eats 3-4 earthworms 3x a day. When I noticed he would eat krill, I started mixing these into daily feedings. So I would do worms 2x a day and krill in between. However, he seems like he is only eating 2-3 at a time. I usually put in 4-5 since they aren't huge, but I notice he immediately goes over to them 1-2 disappear and then the rest sit on the bottom for a couple hours until I take them out. So not sure there.
Poop has been normal brown, until he started eating krill, then his poop turned an orange color, which I assume is completely normal.
Seems to be acting normal, still in the 110 gallon stock tank due to my 220 busting a seal. I am still deciding whether I want to build a plywood or order some acrylic and try building one. I just can't push myself to spend $3000 on the 96x48x24, especially when I can buy the acrylic to build it myself for around 1400-1500$.