Not recommended — a discus and tiger barb are a risky mix.
Temperature clash — the discus (82–88°F) and tiger barb (68–79°F) don't share a safe range.
pH preferences overlap (6–7) — easy to keep both comfortable.
Both are shoaling species — keep each in its own group of 6+ for calm, confident fish.
Plan on at least 55 gallons for the pair (the larger of their two minimums).
Can a discus and tiger barb live together?
Not recommended — a discus and tiger barb are a risky mix. Minimum tank for the pair is about 55 gallons.