Can Delhezi Bichir (Armored Bichir) and German Blue Ram Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 4, 2026
Possible with Caution

Keeping Delhezi Bichir (Armored Bichir) and German Blue Ram together is possible but requires caution, though some care is needed. 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

Delhezi Bichir (Armored Bichir)

Polypterus delhezi

German Blue Ram

Mikrogeophagus ramirezi

🐠Family Group
Delhezi Bichir (Armored Bichir)
Oddballs
German Blue Ram
Cichlids - South American
Temperament
Delhezi Bichir (Armored Bichir)
Semi-Aggressive (6/10)
German Blue Ram
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Delhezi Bichir (Armored Bichir)
24–30°C
German Blue Ram
27–30°C
pH Range
✓ Compatible
Delhezi Bichir (Armored Bichir)
6–8
German Blue Ram
5–7
Hardness (dGH)
✓ Compatible
Delhezi Bichir (Armored Bichir)
5–20
German Blue Ram
1–8
Water Type
✓ Compatible
Delhezi Bichir (Armored Bichir)
Freshwater Only
German Blue Ram
Freshwater Only
Flow Preference
✓ Compatible
Delhezi Bichir (Armored Bichir)
Low
German Blue Ram
Low
Min Tank Volume
Combined: 280 L
Delhezi Bichir (Armored Bichir)
280 L
German Blue Ram
60 L
Swimming Level
Shared: 1 zone
Delhezi Bichir (Armored Bichir)
Bottom
German Blue Ram
MiddleBottom
🏷️Behavior Tags
Delhezi Bichir (Armored Bichir)
Piscivore (Eats small/nano fish)Shrimp EaterJumper (Lid Required)Nocturnal
German Blue Ram
Territorial (Defends specific area)Digger (Disturbs Substrate)Fry PredatorShy / Slow Moving (Easily Stressed)
Stocking calculator

Can your tank handle Delhezi Bichir (Armored Bichir) and German Blue Ram?

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.

Delhezi Bichir (Armored Bichir)
German Blue Ram
Test both in my tank

Behaviour & Temperament

Delhezi Bichir (Armored Bichir) is a moderately assertive species (6/10), while German Blue Ram is generally mild-mannered (4/10). This modest difference means Delhezi Bichir (Armored Bichir) may occasionally assert dominance over German Blue Ram.

Delhezi Bichir (Armored Bichir) and German Blue Ram 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.

Worth noting: Delhezi Bichir (Armored Bichir) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Delhezi Bichir (Armored Bichir) is a known jumper, so a tight-fitting lid is essential.

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 Delhezi Bichir (Armored Bichir) and German Blue Ram to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations.

Water Parameters

The safe temperature window for both species falls between 27°C and 30°C. Aim for the midpoint of this range (around 28.5°C) for optimal comfort.

Both fish can tolerate a pH between 6 and 7. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 5–8 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Delhezi Bichir (Armored Bichir) and German Blue Ram 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), Driftwood (Digestion/Hiding), Plants - Densely covered, Leaf Litter/Blackwater. Meeting these requirements will help both species thrive.

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

Why This Pairing Needs Extra Planning in Practice

This pairing usually fails when the tank is treated like a standard mixed community and the caution flags are ignored. Delhezi Bichir (Armored Bichir) and German Blue Ram need extra room, more cover, and closer observation during the first few weeks so small aggression, feeding, or territory issues do not snowball into a long-term problem.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Delhezi Bichir (Armored Bichir) and German Blue Ram.

Show 1 more tank size

Frequently Asked Questions

Can Delhezi Bichir (Armored Bichir) and German Blue Ram 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 Delhezi Bichir (Armored Bichir) and German Blue Ram 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 Delhezi Bichir (Armored Bichir) and German Blue Ram together?

Keep the aquarium between 27°C and 30°C. A target of around 28.5°C sits comfortably within both species' preferred ranges.

Are Delhezi Bichir (Armored Bichir) or German Blue Ram aggressive?

Delhezi Bichir (Armored Bichir) is moderately assertive (6/10) and German Blue Ram is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Delhezi Bichir (Armored Bichir) and German Blue Ram need?

Both species overlap in the 6–7 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage German Blue Ram's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives German Blue Ram 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.

Does Delhezi Bichir (Armored Bichir) being nocturnal affect compatibility?

Delhezi Bichir (Armored Bichir) is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Delhezi Bichir (Armored Bichir) during evening hours.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
May 4, 2026
Last updated
May 4, 2026
Issues or corrections?
Contact the editorial team

Related Comparisons

Delhezi Bichir (Armored Bichir) & African Knifefish

·

Possible with Caution
Delhezi Bichir (Armored Bichir): PeacefulAfrican Knifefish: Peaceful

Delhezi Bichir (Armored Bichir) & Buettikoferi Bichir

·

Possible with Caution
Delhezi Bichir (Armored Bichir): PeacefulBuettikoferi Bichir: Peaceful

Delhezi Bichir (Armored Bichir) & Freshwater Toadfish (Prehistoric Monster Fish)

·

Possible with Caution
Delhezi Bichir (Armored Bichir): PeacefulFreshwater Toadfish (Prehistoric Monster Fish): Peaceful

Delhezi Bichir (Armored Bichir) & Guinean Bichir

·

Possible with Caution
Delhezi Bichir (Armored Bichir): PeacefulGuinean Bichir: Peaceful

Delhezi Bichir (Armored Bichir) & Marbled Bichir

·

Possible with Caution
Delhezi Bichir (Armored Bichir): PeacefulMarbled Bichir: Peaceful

Delhezi Bichir (Armored Bichir) & Mokele-mbembe Bichir

·

Possible with Caution
Delhezi Bichir (Armored Bichir): PeacefulMokele-mbembe Bichir: Peaceful

German Blue Ram & Aequidens diadema (Diadem Cichlid)

·

Possible with Caution
German Blue Ram: PeacefulAequidens diadema (Diadem Cichlid): Peaceful

German Blue Ram & Aequidens sp. Atabapo

·

Possible with Caution
German Blue Ram: PeacefulAequidens sp. Atabapo: Peaceful

German Blue Ram & Apistogramma Broad-banded

·

Possible with Caution
German Blue Ram: PeacefulApistogramma Broad-banded: Peaceful

German Blue Ram & Apistogramma macmasteri

·

Possible with Caution
German Blue Ram: PeacefulApistogramma macmasteri: Peaceful

German Blue Ram & Apistogramma Mamoré

·

Possible with Caution
German Blue Ram: PeacefulApistogramma Mamoré: Peaceful

German Blue Ram & Apistogramma Mouthbrooder (Maulbrüter)

·

Possible with Caution
German Blue Ram: PeacefulApistogramma Mouthbrooder (Maulbrüter): Peaceful