Re: New Hedgehog Owner! He has bad diarrhea, NEED HELP
It's reassuring that your little hedgie's food has been changed as this can cause some green colored poo. Most of the threads here will recommend changing food slowly to let the hedgie tummy get used to it. At this point, you have already started the change and with close observation to be sure your hedgie is not suffering any other ill effects, you could watch and just keep doing what you are doing. If you are concerned, though, a knowledgeable Vet can help set your mind at ease or pinpoint other problems. No one can really diagnose the problem without seeing your hedgie, so the option is always there. You can never go wrong with an expert opinion.
Good luck to both of you and Persephone and I send our hedgie hugs your way!