A few tips about this mod.
1st. For some reason, the pet mudraptor refuses to eat, when there's a human (player, AI crewmate) in the same room. It must be alone, so it can eat.

2nd: Maybe this sounds weird, but mudraptors are actually occasional cannibals. The pet mudraptor will eat a corpse of a wild mudraptor if you give it to it, but it prefers another creature over it's own kind. I highly recommend to feed it crawlers though. Maybe this has something to do with mudraptors and crawlers being arch-nemesis.

3rd: If you don't have "enhanced Husk" mod installed, then you don't have to worry about your pet mudraptor getting husk infection. So if you wanna feed it husked crawler, or husk in a diving suit, then go ahead.

4th: Be careful with a raptor bane! Like for it's wild counterpart, the raptor bane is also highly toxic for pet mudraptors.

5th: Like it's wild counterpart, pet mudraptor is also pretty tough. So, if you have a hostile creature in your sub, don't hesitate, and send it against that intruder. But be wise about it. In some cases, the pet mudraptor can get overwhelmed and either killed or seriously injured.

6th: To prevent mistaking your pet mudraptor with a wild one, especially, if it fights it's wild counterpart, or to prevent confusion, if you have more than one pet mudraptors with the same color, I highly reccomend to name it/them. The choice of the name is up to you.

That's all the tips, I can think of. If you have a different tip about this mod. Don't hesitate and put it here.