Best tang for reef tank (by tank size)

Tangs are the algae-grazing showpiece of saltwater tanks. Each species has a minimum tank requirement + temperament profile. Here's the by-size match-up.

75 gallons - Yellow Tang

Smallest tang that comfortably fits 75g. Hardy, bright yellow, aquacultured at limited scale. Algae-grazer. Care guide →

75 gallons - Kole Tang

Detritus-eater + algae grazer. Smaller than yellow tang. Compatible with yellow in same tank.

100 gallons - Tomini Tang (Ctenochaetus tominiensis)

Smaller bristletooth tang. Peaceful + reef-safe. Goldring + glasses tang are similar.

125 gallons - Hippo Tang (Paracanthurus hepatus)

Famous from Finding Nemo. Reaches 12 inches. Active swimmer. Ich magnet - quarantine and watch closely.

180 gallons - Naso Tang

Reaches 14 inches. Long-tank requirement (6+ feet). Peaceful. Care guide →

180 gallons - Sailfin Tang (Zebrasoma desjardinii or velifer)

Showpiece tang. 16 inches adult. Algae-grazer. Care guide →

Avoid in any home tank: Vlamingii Tang, Unicornfish (large)

Adult sizes 18-24 inches require 250+ gallons. Public-aquarium scale.

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Frequently asked questions

What's the smallest tank for a tang?

75 gallons for Yellow Tang or Kole Tang. Below 75g causes stunting + chronic stress + early death. The tank also needs to be at least 4 feet long - tang body shape requires horizontal swimming room.

Can I keep two tangs together?

Different species + different body shapes can coexist in 100+ gallon (Yellow + Kole, Yellow + Hippo). Same-species pairs need 180+ gallon. Multiple Yellow tangs in <180g almost always end with one killed.

Sources and references

Recommendations on this page cross-checked against the following authoritative references and our internal vendor + breeder database.

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