I feed my 75 and 90 gallon tanks newly hatched brine shrimp at least twice a day. I keep brine shrimp hatcheries going 24/7.
The Bangai Cardinals in my 90 display breed constantly, and I've had fry grow to maturity in this tank. The live brine provide food for the young Bangais.
I mix live baby brine with powdered spirulina and powdered fry food, and feed my clam, corals and gorgonians (and baby Bangai) with this mix. I use a turkey baster to spray the mix into the intake of one of the two pumps in the sump.
This pump sprays water under the rockwork (the other shoots water from the right side top of the tank).
I set up the tank so I could keep Mandarin gobies and leopard wrasses.
Live brine is very nutritious IF you feed while they still have a yolk sac.