Altum Angelfish — Variety Guide
Altum — one of the angelfish varieties owners search for by name.
Altum is one of the angelfish varieties people look up by name. This page answers the questions owners actually type about altum, then points you to the sourced angelfish care guidance that applies to every variety.
Tall, graceful cichlids with real personality — and a taste for small tetras.
Quick answer: Altum is a variety of angelfish. Everything on this page is angelfish-level guidance — we do not invent variety-specific numbers.
The care below is angelfish-level guidance from our species hub, sourced to Merck Veterinary Manual — Exotic & Laboratory Animals: Aquarium Fish and RSPCA — Aquarium fish advice. It applies to Altum exactly as it applies to every other angelfish variety. We do not publish variety-specific temperament, lifespan or weight numbers that we cannot source.
Water and temperature
24–28°C (75–82°F), pH roughly 6.0–7.5 as long as it is stable, soft-to-moderate hardness, and zero ammonia/nitrite with nitrate kept under ~20 ppm through weekly partial water changes. Wild-caught altums (P. altum) are a specialist's fish needing very soft, warm, acidic water — buy tank-raised scalare for a first angel. Stability beats perfection: swings cause stress disease faster than any single number.
Tank mates that actually work
Good company: larger tetras (black skirts, head-and-tail-light, rummy-nose), corydoras, larger peaceful gouramis, bristlenose plecos. Risky: neon tetras (adult angels eat them — the classic heartbreak), guppy fry (same), fin-nippers like tiger barbs (they destroy angel fins), and other angelfish in small tanks (pair-forming leads to chasing). Bottom dwellers are safest neighbors; mid-water slow fish are the ones to think through.
What people ask about Altum
Altum angelfish?
This is one of the questions people actually type about altum. The sourced angelfish answer lives in our species hub, linked from this page — the same rules apply to Altum as to any other angelfish variety.
Altum angelfish for sale?
This is one of the questions people actually type about altum. The sourced angelfish answer lives in our species hub, linked from this page — the same rules apply to Altum as to any other angelfish variety.
Altum angelfish size?
This is one of the questions people actually type about altum. The sourced angelfish answer lives in our species hub, linked from this page — the same rules apply to Altum as to any other angelfish variety.
Altum angelfish price?
This is one of the questions people actually type about altum. The sourced angelfish answer lives in our species hub, linked from this page — the same rules apply to Altum as to any other angelfish variety.
Altum angelfish tank size?
This is one of the questions people actually type about altum. The sourced angelfish answer lives in our species hub, linked from this page — the same rules apply to Altum as to any other angelfish variety.
Other angelfish varieties
Silver Koi angelfish Black lace Marble Gold Zebra
Sources
- Merck Veterinary Manual — Exotic & Laboratory Animals: Aquarium Fish — verified 2026-10-18
- RSPCA — Aquarium fish advice — verified 2026-10-18