After 22 hours of loitering around the pet shop, I gave up on being around when the egg hatched and went off to find more herbs. I’d left off with 14k exp to a level, so I tried chaos druids. They still drop herbs frequently, just not the ones I wanted for a quick level. I broke down and made some of those recover special pots (super energy+papaya).

Yayness, I can make super prayer pots with some help from Greenman.
I bought 1k wyvern bones and scrounged up 13 empty pots from my house. On my way to Yanille bank, I stopped to check the egg and viola! a second red hatchling!
I let him tag along with me as I ground up the wyvern bones and made the super prayer pots in my house. Afterwards, I went fishing for sharks at the guild. I think I’ll keep them raw for bunyips.
ION, Jagex isn’t taking payment for membership. I’ve switched to a new card, but the system locks me out as it goes to a secure site. I have about 1 – 1 1/2 days of P2P left, so you may find me hanging in F2P on Monday. I’ll keep trying to get the site to load.
EDIT: w00t! Payment accepted!