Can kribensis live with swordtails?

Verdict
Yes

Yes, kribensis and swordtails can live together. Both are fine at 75–79°F. Plan on at least 30 gal.

KribensisKribensis75–80°F · pH 6–7.5 SwordtailSwordtail72–79°F · pH 7–8.3

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Kribensis 75–80°Swordtail 72–79°
The green band is the temperature range both can live in.
456789Both: 7–7.5Kribensis 6–7.5Swordtail 7–8.3
The green band is the pH both tolerate.

Size to scale

Kribensis · 4 inSwordtail · 5 in0"1"2"3"4"5"6"
Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

KribensisSwordtail
Temperature75–80 °F72–79 °F
pH6–7.57–8.3
Adult size4.0 in5.0 in
Minimum tank30 gal30 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atBottomMiddle
GroupAlone or in pairsGroups of 3+
DietOmnivoreOmnivore

Better tank mates for kribensis

All kribensis tank mates

Better tank mates for swordtails

All swordtail tank mates

Questions

Can kribensis live with swordtails?

Yes, kribensis and swordtails can live together. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both kribensis and swordtails?

75–79 °F. Kribensis need 75–80 °F, swordtails need 72–79 °F.

What size tank do kribensis and swordtails need together?

At least 30 gal, set by the kribensis. Add space for each extra fish.