* Danios: Danios are another type of fish that are compatible with bala sharks. They are very active and playful, and they will add some color to your tank. Some good danio species to consider include zebra danios, leopard danios, and giant danios.
* Rasboras: Rasboras are a type of fish that are very similar to danios. They are also very active and playful, and they will add some color to your tank. Some good rasbora species to consider include harlequin rasboras, cherry rasboras, and neon rasboras.
* Tetras: Tetras are a type of fish that are very peaceful and will not bother your bala shark. They are also very colorful, and they will add some beauty to your tank. Some good tetra species to consider include cardinal tetras, neon tetras, and rummy nose tetras.
* Corydoras catfish: Corydoras catfish are a type of fish that are very peaceful and will not bother your bala shark. They are also very good at cleaning up your tank, and they will help to keep the water clean. Some good corydoras species to consider include peppered corys, bronze corys, and panda corys.