Rare mushrooms add 50 food per. Don't decay. Easy to get from megachelons. Rare flower work as well. Beware they starve extremely fast. So only food with high enough food value will keep them alive. Aka not the seeds u get from megachelons. That will cause them to starve faster than they can eat.
With a baby gacha, it is best to use meat in the beginning. Berries are Not the right food, as it allows for their food health to go down too quickly which in turn allows for them to starve to death. Meat is best and then as they gain weight, both stone and meat can be used.
Get owl, burn it’s stam by freezing, it’ll give you pellets, drop pellets on ground for Gacha. Tamed a 130 in a minute on x3. Super easy. Also got a green riot chest piece and yellow fab sniper from sparkly crystals wild ones drop so there’s that lol
Make sure when you drop items you drop them from YOR inventory, DO NO drop them from your mount or you will WASTE your items. I learned this after I drop 100 stone walls from my tame to a lvl 150 and then I hopped off and threw down 90 more and it was only 45%tamed. So I wasted 100 stone walls.