Colombian Red and Blue Tetra

Colombian Red and Blue Tetra Tank Setup

Plan for at least 21 US gal min of water—that is the minimum in our database for a workable setup, not a challenge to crowd fish. Aim to hold 72–82°F and pH 6–7.5 without daily drama. These fish use the Mid zone most, so put wood, plants, or open water there accordingly.

What Do Colombian Red and Blue Tetras Eat?

We record diet as Omnivore. Offer a few food types that match—dry, frozen, or gel—and swap now and then. One flake every day for a year is how dull color and gut trouble creep in.

Colombian Red and Blue Tetra Tank Mates

Temperament in the data: Semi-aggressive. Flagged as a fin nipper, so long flowing fins and slow targets are a poor match. Bold active tetra; may nip fins. Keep in groups of 6+. Avoid with long-finned or timid tankmates. Plug your full stock list into the stocking calculator—single-species compatibility scores are hints, not a whole-tank verdict.

Are Colombian Red and Blue Tetras Good for Beginners?

Often a sensible first fish once the tank is cycled and you are willing to test water sometimes. Skip the impulse buy on the same day you set up the tank.