Definitely sounds like a shed. Sometimes Uki (american toad) will have a bubble on her head when in shed. I have a pic but it's blurry. Anyway, it's normal.

I would focus more on soft-bodied or more nutritious feeders than crickets as their staple. As in, crickets as a treat, since you have to gut load them with veggies and whatnot first anyway. Watch for mold, i dunno why but my cricket bin had issues. The oats would get moldy. Not enough ventilation, I suppose. I bred dubia roaches for a while and it was fun and easy once it got going. My toads loved them and they're good for dusting with supplements. A trusted source on here for feeder info said that most roaches are about the same as far as nutrition. If you go the roach route, the type is up to your preference in how you want to keep them. Definitely do your research to pick what's best for you and the toads. Healthy feeder insects = healthy frogs. My Banjo grew so fast after the introduction of dubia. All the protein i guess.

I buy my worms from wal-mart's fishing section and get adamant when the selection is bad. Very particular. But you can keep them in the fridge (butter compartment is good) which is handy. $3.25 for 30. Rinse them off in treated water, pat dry with paper towel, and you can either dust with calcium/d3 or feed naked, depending on their supplement schedule. (i mean the worms, not you) Putting them on a plate and placing toads where they can see them if they're off somewhere else will usually get their attention. They'll try to flick it with their tongue and fail maybe, but eventually they'll get it. hopefully.

If either are male, they won't grow much more, but a lady toad could grow another inch and a half. I would consider them adults, but still offer food almost every night. If they would be eating outside, they should be eating inside.

So basically, what Gail said, haha.