75-80F is not good long term; recommend bring day temp to 84F (29C) to prevent chronic damage to kidney and Lymph Hearts. By the time edema shows up the damage to organs is irreversible. A few degree drop at night is OK.

Well water should be treated with either Seachem Prime or ExoTerra Aquatize to neutralize any heavy metals present. R/O water should not be used with frogs unless to mist the enclosure. Same as distilled water it will draw minerals and vitamins away from the frog body.

Recommend mix your substrate with dechlorinated well water. The water dish should be cleaned daily with hot water and refilled; even if it looks clean.

Poop in water dish can't be missed. Some Pacmans do bury it in their hole; but then move to a new area. If frog moves; check out last hole for a couple inch long cigar shaped smelly poop. If right side shows a lump and feels hard, frog might be constipated. If so; prepare an 80F (27C) bath (dechlorinated water with 3-4 drops of honey) in a small critter keeper or plastic bowl with holed out top. Fill to frog's chin level and cover with towel so frog relaxes and to hold temp for 20 minutes. Then dump out solution and refill with plain dechlorinated water for another 20 minutes. Return frog to enclosure and repeat daily until frog poops.

CA should not be used daily unless it's a product designed for it (i.e. Repashy's Calcium Plus). Here are some supplement tables to use as an example: http://www.frogforum.net/food-feeder...schedules.html.

Recommend main staple diet be Night Crawlers. You can use other items (i.e. gut loaded crickets) as treats. All beetle worms (mealworms, super worms, etc.) have a hard exoskeleton that can cause impaction.

Hope this helps and do read this care article if you haven't: Frog Forum - Pacman and Horned Frogs - Ceratophrys - Care and Breeding. Good luck !