No, dwarfs need high food density as they prefer to sit perched waiting for their food to pass by close enough for them to snick it up.
It would require and inordinate amount of enriched bbs to give an appropriate density, making for drastic waste of the artemia. The standard seahorses won't be bothered with food so small.
Also, the flow rates of the standard seahorses would not be good for dwarfs.
Probably if I took the time to think about it, there would be a lot more reasons.