Can Agassiz Cory and Deep Water Hap (Placidochromis electra) Live Together?
Keeping Agassiz Cory and Deep Water Hap (Placidochromis electra) together is possible but requires caution due to differing aggression levels. Provide a spacious tank of at least 280 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.
At a Glance
Can your tank handle Agassiz Cory and Deep Water Hap (Placidochromis electra)?
Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.
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Behaviour & Temperament
Agassiz Cory is a peaceful species (0/10), while Deep Water Hap (Placidochromis electra) is moderately assertive (5/10). This notable difference means Deep Water Hap (Placidochromis electra) may occasionally assert dominance over Agassiz Cory.
Agassiz Cory and Deep Water Hap (Placidochromis electra) both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
To improve the chances of a peaceful coexistence in this community tank: Provide a significantly larger tank (at least 50% more volume than the minimum) to allow both Agassiz Cory and Deep Water Hap (Placidochromis electra) to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations. A larger aquarium with ample hiding spots can help diffuse aggression and give the less dominant fish space to retreat.
Water Parameters
The safe temperature window for both species falls between 24°C and 27°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.
Both fish can tolerate a pH between 7.8 and 8. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 10–15 dGH. Regular testing will ensure conditions stay within this range.
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Tank Setup
To house Agassiz Cory and Deep Water Hap (Placidochromis electra) together, plan for an aquarium of at least 280 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.
Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.
Specific environmental needs for this combination include: Sand (Sifters), Smooth Gravel (Sensitive Barbels). 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.
Suitable Tank Sizes
Standard aquarium sizes large enough for both Agassiz Cory and Deep Water Hap (Placidochromis electra).
75 Gallon Standard
90 Gallon Standard
125 Gallon Standard
150 Gallon High
180 Gallon Standard
350 Liter (120cm Deep)
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Frequently Asked Questions
Can Agassiz Cory and Deep Water Hap (Placidochromis electra) live together?
They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 280 litres), plenty of hiding spots, and watch for signs of stress or aggression.
What size tank do Agassiz Cory and Deep Water Hap (Placidochromis electra) need?
A minimum of 280 litres (tank length at least 120 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.
What water temperature is best for Agassiz Cory and Deep Water Hap (Placidochromis electra) together?
Keep the aquarium between 24°C and 27°C. A target of around 25.5°C sits comfortably within both species' preferred ranges.
Are Agassiz Cory or Deep Water Hap (Placidochromis electra) aggressive?
Agassiz Cory is peaceful (0/10) and Deep Water Hap (Placidochromis electra) is moderately assertive (5/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.
What pH do Agassiz Cory and Deep Water Hap (Placidochromis electra) need?
Both species overlap in the 7.8–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
How do I manage Deep Water Hap (Placidochromis electra)'s territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Deep Water Hap (Placidochromis electra) space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.
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