Acquired: Worked with fish (didn’t own)
Posted Apr 06, 2014
Pygmy corydoras are often suggested as tank mates to Bettas because they occupy different levels of the tank, cories have the hard scales to protect against a Betta, and pygmy cories are small enough to fit into smaller aquariums. Even though they can fit into a smaller aquarium, I wouldn’t put them in anything smaller than a 10G tank because they are a schooling fish (need at least 5 or 6 in a group) and are sensitive to water parameters (smaller tanks have more fluctuations than larger ones).
From my experiences, pygmy cories are more sensitive than the larger cories and are more shy. A well planted tank with subdued lighting will help pygmy cories feel more secure. I suggest feeding them live or frozen brine shrimp or bloodworms when they’re first introduced to a tank. Then slowly transition them to algae wafers over the course of a week or so. This method has been the most successful that I’ve heard of to keep pygmy cories. Of course, their diet needs to be varied so feed them live or frozen food every so often. Pygmy corydoras is not the solution to algae problems and don’t depend their diet solely on eating algae in the tank.
These fish don’t have flashy patterns or colors like some of their corydoras cousins, but their pattern still looks nice with a dark strip down their body. Keep them happy in a stable aquarium and they will be great additions to small tanks and large tanks alike.