You can find night crawlers and red worms at bait and tackle shops; just make sure they have no additives like dyes. If you think it's impacted; please read this: Frog Forum - Basic Frog First Aid. Would recommend the honey bath (chin deep 80F dechlorinated water with 4 drops of honey, soak frog until bath cools; then repeat with dechlorinated water only to "rinse" frog) or pediallyte (1:10 pedialite to 80F de-chlorinated water solution for 15 min. a day. Also, could you answer these questions to try and narrow down the cause: http://www.frogforum.net/african-bul...enclosure.html. Thank you!