Okay, for gutloading, ask @Kristen Wilkins, she showed me hers, and it is a good idea. For hydration, you'll want to mist 3-4 times a day for about 5-6 minutes. For supplementation, you are correct on that. Feel free to correct me, but the Flukers products are not the best. I may have missed...
I'm not sure if anyone has mentioned this, but a clown loach would eat up all of those snails. I think that tank might be too small to house one though. Sorry this is really off topic.
Okay, that's good you are taking him to the vet. 4 crickets a day is not enough food. Also, do you have a timer for your heat/uvb bulb? I hope everything works out and your chameleon is okay.
That's great, little Cobalt poops all over! :P Little update, I feed some worms, loved them so much. Came right up to my hand and just ate them right up! I'll try to handle right now.