Rotifers are used as a first food for the smaller species,
mainly H. Reidi. However, they are not the best food as they
must be enriched. We personally have never seen a seahorse
baby eat one. An easy way to culture rotifers is with a 32
gallon trash can. Simply add 1.021 SG water, a starter and
a rigid piece of 3/16" airline tubing bubbling just enough
to make a steady stream. We feed ours Nanno paste, about 1/2"
from the squeeze bottle daily. It takes about 2 weeks to establish
a good culture. The Nanno paste is available at Brineshrimp
A 32-gallon plastic trash can works well, with a rigid piece of airline tubing with just enough air to make a steady stream.