Alright, thank youYes, frozen foods are generally less nutritious than alive foods. The "baby" in baby brine shrimp indicates the size, so yes, they should be the same size… if anything, frozen brine shrimp may contain more 1-2 day old brine shrimp as opposed to a few hours old, but the size should not change *that* much in that time period.
I would guess enough to make a visible difference if feeding one fish only live and another only frozen, but I reckon an identical fish with a varied diet would beat both of those.Is there much difference in the nutritional value?