Can Delicate Blue-Eye and Tequila Splitfin Live Together?
Delicate Blue-Eye and Tequila Splitfin are not recommended as tank mates due to no temperature overlap. 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 Delicate Blue-Eye and Tequila Splitfin?
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.
Behaviour & Temperament
Delicate Blue-Eye is a peaceful species (1/10), while Tequila Splitfin is moderately assertive (5/10). This notable difference means Tequila Splitfin may occasionally assert dominance over Delicate Blue-Eye.
Delicate Blue-Eye and Tequila Splitfin both frequent the Middle (Open Water) 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: Delicate Blue-Eye is a known jumper, so a tight-fitting lid is essential.
Water Parameters
There is no temperature overlap between Delicate Blue-Eye (25–32°C) and Tequila Splitfin (20–24°C). This fundamental mismatch makes long-term cohabitation impractical.
Both fish can tolerate a pH between 7 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 6–15 dGH. Regular testing will ensure conditions stay within this range.
Tank Setup
To house Delicate Blue-Eye and Tequila Splitfin together, plan for an aquarium of at least 80 litres with a minimum length of 80 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: Plants - Densely covered, 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.
Why This Pairing Usually Fails in Practice
Delicate Blue-Eye and Tequila Splitfin are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.
Suitable Tank Sizes
Standard aquarium sizes large enough for both Delicate Blue-Eye and Tequila Splitfin.
30 Gallon Breeder
40 Gallon Breeder
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
Show 12 more tank sizes
Frequently Asked Questions
Can Delicate Blue-Eye and Tequila Splitfin live together?
No. This combination is not recommended. Key incompatibilities — such as non-overlapping temperature ranges — make cohabitation unsafe.
What size tank do Delicate Blue-Eye and Tequila Splitfin need?
A minimum of 80 litres (tank length at least 80 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 Delicate Blue-Eye and Tequila Splitfin together?
Unfortunately, there is no temperature range that satisfies both species. Delicate Blue-Eye requires 25–32°C, while Tequila Splitfin needs 20–24°C.
Are Delicate Blue-Eye or Tequila Splitfin aggressive?
Delicate Blue-Eye is peaceful (1/10) and Tequila Splitfin 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 Delicate Blue-Eye and Tequila Splitfin need?
Both species overlap in the 7–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
Will Tequila Splitfin nip Delicate Blue-Eye's fins?
Tequila Splitfin is a known fin nipper. If Delicate Blue-Eye has long or flowing fins, there is a real risk of fin damage. Keeping Tequila Splitfin in a larger group can help redirect nipping behaviour toward conspecifics.
Shared setup supplies
We may earn from qualifying purchases
Guidarium Editorial Desk
Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.
- Last reviewed
- May 11, 2026
- Last updated
- May 11, 2026
- Issues or corrections?
- Contact the editorial team
Related Comparisons
Delicate Blue-Eye & Black-Banded Rainbowfish
·
Delicate Blue-Eye & Celebes Rainbowfish
·
Delicate Blue-Eye & Pacific Blue Eye
·
Delicate Blue-Eye & Ajamaru Rainbowfish
·
Delicate Blue-Eye & Allen's Rainbowfish
·
Delicate Blue-Eye & Angfa Rainbowfish
·
Tequila Splitfin & Butterfly Goodeid
·
Tequila Splitfin & Dwarf Molly
·
Tequila Splitfin & Redtail Splitfin
·
Tequila Splitfin & Sailfin Molly
·
Tequila Splitfin & Celebes Halfbeak
·
Tequila Splitfin & Molly (Sailfin/Black/Dalmatian)
·