I concur w/Charles. I also would not stress her by handling her and moving her around with the soaking and all.
Normally, one would assume that all of the necessary hydration will be absorbed from normal food items and from drinking clean water for a healthy boa. I certainly would not inject such a small snake. Depending on the size of the boa, I would only inject a conservative amount of fluids into the food item. For a neonate boa, just an educated guestimate based on body volume, I’d think that 1cc in a pink would be more than plenty.
Depending on how small the baby is and seeing as it has a past of gurging, I would be highly cautious about giving it any food items larger than what you’ve been giving it. I WOULD NOT graduate the snake to larger food items until several feedings with the currently accepted items have been established without incident. Making an attempt to induce weight gain will likely restart the gurging spree. Be patient, weight gain and growth in BCC can be quite slow.
I don’t know much about the products you’ve mentioned, but I’d reckon that this snake will recover fine without them. Not knowing history on these products, I’d stick to a more basic approach. Try to look at it this way, if she is eating and holding down meals, drinking, defecating, and shedding, she is VERY LIKELY doing just fine. Just my $0.02 worth.
Please keep us posted on what happens and I hope the snake makes a full recovery for you.
Matthew
