๐Ÿ  Fish Compatibility Guide

Can Oscar and Texas Cichlid Live Together?

Updated September 28, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 38/100
38/100 โ€” Not Compatible

Oscar and Texas Cichlid Compatibility Overview

Short answer: No. Oscar and Texas Cichlid are both aggressive. Keep them in separate tanks, or pick one of the safer tank mates listed below.

Oscar and Texas Cichlid are generally not recommended to be housed together. Oscar and Texas Cichlid are both aggressive; housing them together invites sustained fighting rather than an occasional squabble. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Oscar and Texas Cichlid
FactorOscarTexas CichlidVerdict
Temperature74โ€“81ยฐF68โ€“82ยฐFโœ… 74โ€“81ยฐF
pH Range6.0โ€“8.06.0โ€“7.5โœ… 6.0โ€“7.5
TemperamentaggressiveaggressiveโŒ Risk
Adult Size14 in11.8 inโœ… Similar
Min. Group1+1+See below
Min. Tank Size100 gallons (for both species)โ€”

Compatibility Positives

A stable shared temperature range is available.
Their pH requirements overlap.

Incompatibility Reasons

Oscar and Texas Cichlid are both aggressive; housing them together invites sustained fighting rather than an occasional squabble.

Species Profiles

Oscar โ€” Astronotus ocellatus

Oscar and Texas Cichlid compatibility โ€” Oscar

Intelligent but aggressive cichlids that will eat any fish small enough to fit in their mouth. Require large tanks (75+ gallons) and robust tank mates.

โ†’ Full Oscar care guide

Texas Cichlid โ€” Herichthys cyanoguttatus

Oscar and Texas Cichlid compatibility โ€” Texas Cichlid

The Texas Cichlid, known for its vibrant green and blue colors, is a striking addition to the freshwater aquarium. With a lifespan of up to 6 years, these fish are a popular choice among beginners and experienced aquarists alike. However, they are highly aggressive towards their own species and should be kept with non-aggressive tankmates.

โ†’ Full Texas Cichlid care guide

Frequently Asked Questions

Can Oscar live with Texas Cichlid?

Generally not recommended. Oscar and Texas Cichlid are generally not recommended to be housed together. Oscar and Texas Cichlid are both aggressive; housing them together invites sustained fighting rather than an occasional squabble. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Oscar and Texas Cichlid together?

A minimum of 100 gallons is recommended for keeping Oscar and Texas Cichlid together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Oscar and Texas Cichlid?

74โ€“81ยฐF โ€” inside Oscar's 74โ€“81ยฐF and Texas Cichlid's 68โ€“82ยฐF.

Is a Oscar aggressive toward a Texas Cichlid?

Oscar and Texas Cichlid are both aggressive; housing them together invites sustained fighting rather than an occasional squabble.

Related Compatibility Guides

Tank Size for Oscar and Texas Cichlid

Use the scenario that matches the actual group sizes and temperament you plan to keep.

ScenarioTankWhen it applies
Minimum viable125 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community180 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup300 galBest when keeping larger schools or reducing territorial pressure.