Ghost shrimp are the only kinds readily available for me locally, though one store has started stocking cherries. But no way I'll pay 7 dollars for a little shrimp, especially after my experience with the ghosts... can never get one to live past one or two molts.
Keeping 11 in one of my vases now as keeping them in tanks didn't work out.
Also I'm adding miniscule amounts of Flourish and Flourish trace for the plants after water changes in the hope the added iodine will help with molts.
