Can Adolfo Cory and Altum Angel Live Together?

Adolfo Cory is a peaceful species (1/10), while Altum Angel is moderately assertive (5/10). This notable difference means Altum Angel may occasionally assert dominance over Adolfo Cory.

In terms of spatial distribution, Adolfo Cory prefers the Bottom (Substrate) zone, whereas Altum Angel occupies the Middle (Open Water) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion.

There is no temperature overlap between Adolfo Cory (20–26°C) and Altum Angel (27–32°C). This fundamental mismatch makes long-term cohabitation impractical.

Both fish can tolerate a pH between 4.5 and 6.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 1–5 dGH. Regular testing will ensure conditions stay within this range.

To house Adolfo Cory and Altum Angel together, plan for an aquarium of at least 400 litres with a minimum length of 120 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.

Specific environmental needs for this combination include: Sand (Sifters), Leaf Litter/Blackwater, Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Plants - Floating. Meeting these requirements will help both species thrive.

Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.