New pacman, diet and defecation concerns

[Feesh]

Hey all, first time posting on this forum. I'm a new frog owner, though experienced with other exotics, and I have some concerns with my new pacman. I bought him 4 weeks ago from the pet store I work in, and unless I somehow missed it he has yet to defecate. He has eaten about twice a week, and is offered food every time he surfaces from the earth. I've tried earthworms, pinkies, and super worms, but all he will eat is crickets and samurai pacman food. I'm worried at this point that he might be impacted. He's refusing food more lately, and still no poop. He was on sphagnum for a short while, and I fear he may have ingested some. I'm preparing to bring him to a vet if need be. Below is the specs of his habitat. Thanks in advance for any advice!


1. Size of enclosure: 10 gal
2. # of inhabitants - 1
3. Humidity: 60 - 80% (working on keeping it up)
4. Temperature- 75-80
5. Water - spring water spritz 2-3 times a day
6. Materials used for substrate: Eco earth
7. Enclosure set up: log for hiding, live pothos, fake vines
8. Main food source: crickets and samurai pacman food
9. Vitamins and calcium? Calcium dusted on all crickets
10. Lighting: low wat halogen bulb
11. What is being used to maintain the temperature of the enclosure: Heat mat with rheostat
12. When is the last time he/she ate: over 5days ago
13. Have you found poop lately: no

16. How old is the frog: roughly 8 months
17. How long have you owned him/her: 4 weeks
18. Is the frog wild caught or captive bred: cb
19. Frog food- how often and if it is diverse, what other feeders are used as treats: he only accepts crickets and samurai pacman food twice a week
20. How often the frog is handled: less than 1x a week
21. Is the enclosure kept in a high or low traffic area:low
22. Describe enclosure maintenance (water changes, cleaning, etc): spot clean daily, stir dirt weekly change entire thing monthly