๐Ÿ  Fish Compatibility Guide

Can Blue Tang and Severum Cichlid Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 0/100
0/100 โ€” Not Compatible

Blue Tang and Severum Cichlid Compatibility Overview

Blue Tang and Severum Cichlid are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Blue Tang wants 8.1โ€“8.4 and Severum Cichlid wants 5.5โ€“7.0. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Blue Tang and Severum Cichlid
FactorBlue TangSeverum CichlidVerdict
Temperature72โ€“82ยฐF72โ€“84ยฐFโœ… 72โ€“82ยฐF
pH Range8.1โ€“8.45.5โ€“7.0โŒ No overlap
Temperamentsemisemiโš ๏ธ Monitor
Adult Size12.0 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.

Incompatibility Reasons

One of these is a marine species and the other is not; they cannot share one aquarium.
Their pH ranges do not meet: Blue Tang wants 8.1โ€“8.4 and Severum Cichlid wants 5.5โ€“7.0.
Both are semi, so give them a larger, well-planted tank and watch how they settle in.

Species Profiles

Blue Tang โ€” Paracanthurus hepatus

Blue Tang and Severum Cichlid compatibility โ€” Blue Tang

The Blue Tang is a popular saltwater fish known for its vibrant blue color and yellow stripes. These fish are generally peaceful and can be kept in a community tank with other non-aggressive species. They require a well-maintained, spacious tank with plenty of swimming space and hiding spots.

โ†’ Full Blue Tang care guide

Severum Cichlid โ€” Heros efasciatus

Blue Tang and Severum Cichlid compatibility โ€” Severum Cichlid

The Severum Cichlid, known for its vibrant colors and peaceful nature, is a popular choice for freshwater aquariums. They have a lifespan of around 5 years and require a minimum tank size of 80 liters. These fish are not schooling fish but are known to be gentle and compatible with a variety of tank mates.

โ†’ Full Severum Cichlid care guide

Frequently Asked Questions

Can Blue Tang live with Severum Cichlid?

Generally not recommended. Blue Tang and Severum Cichlid are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Blue Tang wants 8.1โ€“8.4 and Severum Cichlid wants 5.5โ€“7.0. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Blue Tang and Severum Cichlid together?

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

What temperature suits both Blue Tang and Severum Cichlid?

72โ€“82ยฐF โ€” inside Blue Tang's 72โ€“82ยฐF and Severum Cichlid's 72โ€“84ยฐF.

Is a Blue Tang aggressive toward a Severum Cichlid?

Blue Tang is semi and Severum Cichlid is semi. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Blue Tang and Severum Cichlid

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

ScenarioTankWhen it applies
Minimum viable180 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community300 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup350 galBest when keeping larger schools or reducing territorial pressure.