Can Siamese fighting fish Live With Cherry Shrimp?

Cherry shrimp and bettas share a comfortable overlap of 22 to 28 °C and pH 6.5 to 8, and a small group of shrimp needs very little room. The difficulty is size. An adult cherry shrimp is about 3 cm, and the young hatch as fully formed miniature shrimp that start grazing at once, which makes them the size of the small live foods, such as Daphnia, that a betta is fed.

The general rule for bettas applies to shrimp as much as to fish: best kept alone, with tolerance of other animals the exception. If you try it, give the shrimp dense planting to hide in and plan for some losses rather than a colony that grows unchecked.

Keep the water right for the shrimp too. Cherry shrimp need moderate GH and KH, with crushed coral or a mineral supplement in soft water, so they can rebuild their shells after each molt.