Zoo Med Laboratories AZMBB9 Nano Banquet Block Mini

It is very small (perfect for the typical nano shrimp tank. Mine happens to be the fluval 5.5 spec) and does provide the large number of shrimp associated with small shrimp tanks a nice food variety among their shrimp pellets and frozen varieties of food.

I will throw in a block as often as once a week, or every other week (dependent on my weekly to bi-weekly water changes). It is important to only feed these blocks right before a water change is due or right after a water change is completed only because once again, with any plaster fed food, when left in the water column, it can get messy and dirty the tank in a relatively short amount of time. My cherry shrimp, orange bee shrimp, and red fire shrimp do enjoy it however and I will continue to offer it to them as a food variety once in a while.