Not recommended — a goldfish (fancy) and german blue ram are a risky mix.
Temperature clash — the goldfish (fancy) (65–75°F) and german blue ram (78–85°F) don't share a safe range.
pH preferences overlap (7–7) — easy to keep both comfortable.
Plan on at least 20 gallons for the pair (the larger of their two minimums).
Can a goldfish (fancy) and german blue ram live together?
Not recommended — a goldfish (fancy) and german blue ram are a risky mix. Minimum tank for the pair is about 20 gallons.