AquaStocker

Can a Oscar Live With a Discus?

Not recommended — a oscar and discus are a risky mix.

Updated June 2026
By the AquaStocker team · How we source our data
Not recommended
OscarOscar
12.0" · 55g min · 74–81°F · Aggressive
+
DiscusDiscus
8.0" · 55g min · 82–88°F · Peaceful
Temperature clash — the oscar (74–81°F) and discus (82–88°F) don't share a safe range.
pH preferences overlap (6–7) — easy to keep both comfortable.
The oscar is aggressive and will likely harass or harm the discus.
Plan on at least 55 gallons for the pair (the larger of their two minimums).

Plan the full tank with the stocking calculator →

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Aquarium water test kitwatch your parametersAquarium filtermore filtration = headroomAquarium heaterstable temperature55 gallon aquariumroom for both

FAQ

Can a oscar and discus live together?
Not recommended — a oscar and discus are a risky mix. Minimum tank for the pair is about 55 gallons.

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