I keep my mud's water between 80-85. I know that seems a little too warm but he's from a very warm climate where the water outside would be at least that warm. When I've tried lowering the water temp he becomes very sluggish. I do use a submersible heater for him, it's an Ebo-Jager brand. I've not tried the titanium heaters but I hear they are wonderful.
Since yours are musk, not mud like mine but are babies 78-80 is probably a good temp; however, it'll be nice if some of the musk keepers will pop on here & respond to you.
My mud loves to eat anything live, roaches, crickets, fish, mealworms, earthworms, grub worms, bloodworms. I tried live tubifex worms once, he didn't care for those.
I also use the frozen fish food cubes, I thaw them in warm water before I give them to him, he likes brine shrimp for a treat, he likes th frozen bloodworms too but I've found he didn't care for the glass worms, plankton, or.. there was another I tried that he didn't like I don't recall what that was. May have been blackworms or krill.
I'm sure some of these other people here will have some advice for ya, right?
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PHRatz

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