No more Nameless Venom is needed to raise Rock Drake babies. The higher the base Food value, the longer you can let your Rock Drake baby grow outside after fully recharging it in the Cryo Hospital. When the Food runs out, simply put the Rock Drake in the Cryopod and store it in the Hospital for a few hours. It might even be possible to shorten this time with "Clockface" by speeding up the Hospital. What's 100% safe is that you can now raise Rock Drake babies and similar creatures that require specific food without that food, in combination with the Hospital. Refill the Food, take the baby out (ideally during Double Rates), let it grow passively, keep an eye on its HP, put it back in the Cryo Hospital, wait, and repeat. With 600 Food at level 361, it will last at least 3 hours before running out. With 6000 food, he's been outside the pod for over 16 hours, almost fully grown, and still has over 2500 food left before I'd put him back in the hospital. These numbers are from Double Rates. I haven't used Nameless Venom yet, and it's working. Greetings from Ragnarok, your friendly neighbour :)