Wait and see if he poops now before offering too much more. If he hasn't eaten enough in a long time, which definitely seems to be the case, he needs to stretch his appetite a little slowly--not a lot, but don't overwhelm him. On the other hand, what he ate today may lead to much more interest in eating tomorrow!
Keep up the hydration--you're doing a great job!
Sandy
Keep up the hydration--you're doing a great job!
Sandy