Can Bearded Cory and Figure 8 Puffer (Brackish) Live Together?
Bearded Cory and Figure 8 Puffer (Brackish) are not recommended as tank mates due to incompatible water types and no temperature overlap and conflicting pH requirements. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.
At a Glance
Can your tank handle Bearded Cory and Figure 8 Puffer (Brackish)?
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.
Shared setup supplies
We may earn from qualifying purchases
Behaviour & Temperament
Bearded Cory is a peaceful species (2/10), while Figure 8 Puffer (Brackish) is semi-aggressive (8/10). This notable difference means Figure 8 Puffer (Brackish) may occasionally assert dominance over Bearded Cory.
Large aggression gap (6 points) between Bearded Cory and Figure 8 Puffer (Brackish) increases stress risk for the more peaceful fish.
Bearded Cory and Figure 8 Puffer (Brackish) 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.
Water Parameters
There is no temperature overlap between Bearded Cory (16–23°C) and Figure 8 Puffer (Brackish) (24–28°C). This fundamental mismatch makes long-term cohabitation impractical.
The pH requirements of Bearded Cory (6–7.4) and Figure 8 Puffer (Brackish) (7.5–8.5) do not overlap, making it impossible to satisfy both species simultaneously.
For general hardness, the shared comfort zone is 10–12 dGH. Regular testing will ensure conditions stay within this range.
Crucially, these species require different water types — one needs freshwater while the other requires brackish conditions. This is a hard barrier to keeping them together.
Water care products
We may earn from qualifying purchases
Tank Setup
To house Bearded Cory and Figure 8 Puffer (Brackish) together, plan for an aquarium of at least 110 litres with a minimum length of 90 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), Shells (Breeding/Hiding). 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 Bearded Cory and Figure 8 Puffer (Brackish).
30 Gallon Breeder
40 Gallon Breeder
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
Show 10 more tank sizes
Feeding products to consider
We may earn from qualifying purchases
.webp?2026-04-25T14%3A35%3A38.022Z)
Frequently Asked Questions
Can Bearded Cory and Figure 8 Puffer (Brackish) live together?
No. This combination is not recommended. Key incompatibilities — such as different water type needs — make cohabitation unsafe.
What size tank do Bearded Cory and Figure 8 Puffer (Brackish) need?
A minimum of 110 litres (tank length at least 90 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 Bearded Cory and Figure 8 Puffer (Brackish) together?
Unfortunately, there is no temperature range that satisfies both species. Bearded Cory requires 16–23°C, while Figure 8 Puffer (Brackish) needs 24–28°C.
Are Bearded Cory or Figure 8 Puffer (Brackish) aggressive?
Bearded Cory is peaceful (2/10) and Figure 8 Puffer (Brackish) is semi-aggressive (8/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.
What pH do Bearded Cory and Figure 8 Puffer (Brackish) need?
Their pH requirements do not overlap. Bearded Cory prefers 6–7.4, while Figure 8 Puffer (Brackish) needs 7.5–8.5. This makes them incompatible in the same water chemistry.
Will Figure 8 Puffer (Brackish) nip Bearded Cory's fins?
Figure 8 Puffer (Brackish) is a known fin nipper. If Bearded Cory has long or flowing fins, there is a real risk of fin damage. Keeping Figure 8 Puffer (Brackish) in a larger group can help redirect nipping behaviour toward conspecifics.
How do I manage Figure 8 Puffer (Brackish)'s territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Figure 8 Puffer (Brackish) 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.
Related Comparisons
Bearded Cory & Adolfo Cory
·
Bearded Cory & Agassiz Cory
·
Bearded Cory & Alligator Pleco
·
Bearded Cory & Asher Cory
·
Bearded Cory & Bandit Cory
·
Bearded Cory & Black Corydoras
·
Figure 8 Puffer (Brackish) & Ceylon Puffer (Brackish)
·
Figure 8 Puffer (Brackish) & Green Spotted Puffer (Brackish)
·
Figure 8 Puffer (Brackish) & Fahaka Puffer
·
Figure 8 Puffer (Brackish) & Mbu Puffer
·
Figure 8 Puffer (Brackish) & Abei Puffer
·
Figure 8 Puffer (Brackish) & Arrowhead Puffer
·