Suitable Squid Food For Breeding

Recently, a new update added baby squids and glow squids (and dolphins) to minecraft. How do they spawn? How did their parents even bred? What we need is something for them to eat. In real life, they eat fishes, crustaceans(the crabs), or sometimes mollusks. But in minecraft, they will eat tropical fishes or nautilus shells. They can also eat crabs, but that's for a future update, maybe 1.22, maybe even octopuses get added! But for now, please make them breed using tropical fishes or nautilus shells.

Thanks for reading!