Un-expected pregnancy and birth

[blood_hound]

My Seahorses got busy.
I was cleaning my seahorse tank last thursday and I notice that three of my seahorse pouch was really big, at first I thought it was nothing but still decided to put them in a seperate tank then when I was watching them today "boom" one of the seahorse exploded with babies...

Now I put up couple of brine shrimp hachery for food.

Questions.

Is brine shrimp enough for these babies?
What are the likely hood of survival for my baby seahorse?
how long would it take for seahorse to mature enough so I can relax a little bit?
Anybody want a baby seahorse?? lol