No such things on runescape as baby basilisks. However, there's a slayer creature called a Basilisk.
Brown basilisks can eat roaches. My neighbors old basilisks ate roaches that we found in our neighborhood.
Birds, wild cats, larger reptiles...
There are no baby-basilisks in the HP, and they do not exist in the reality either, so I don't think your question can be answered at all.
Basilisks drops a lot of water runes on a regular basis, or you can buy them st a shop oor off a player or on GE, or you can simply make them yourself.
In runescape, players catch and eat swordfish, but no animal you can eat eats anything.
Well most basilisks in movies you see are mostly active at night. And if you read mythology books you can learn some about them. But basilisks are both night and day hunters but mostly night.
there are no baby green dragons
gecko's eat flies and you can buy flies in pet shops all over runescape
They don't.
No. Basilisks are gigantic snake-like reptiles and are pets for parselmouths so the owner will order it whether to go hunting or not.
Being related to Iguanas, and living in the jungle environment, they eat while basking on rocks, on trees, or on the ground. They are adept at camouflage and can also run across the surface of streams and ponds.
no