Can convict cichlids live with swordtails?

Verdict
Yes, with care

Yes, with care. Convict cichlids and swordtails can share a tank, but watch one thing. Convict cichlids are aggressive. Swordtails hold their own only in a big tank with places to hide.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 74–79°Convict cichlid 74–82°Swordtail 72–79°
The green band is the temperature range both can live in.
456789Both: 7–7.8Convict cichlid 6.6–7.8Swordtail 7–8.3
The green band is the pH both tolerate.

Size to scale

Convict cichlid · 5 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

Convict cichlidSwordtail
Temperature74–82 °F72–79 °F
pH6.6–7.87–8.3
Adult size5.0 in5.0 in
Minimum tank30 gal30 gal
TemperamentAggressiveSemi-aggressive
Swims atBottomMiddle
GroupAlone or in pairsGroups of 3+
DietOmnivoreOmnivore

Better tank mates for convict cichlids

All convict cichlid tank mates

Better tank mates for swordtails

All swordtail tank mates

Questions

Can convict cichlids live with swordtails?

Yes, with care. Convict cichlids and swordtails can share a tank, but watch one thing. Convict cichlids are aggressive. Swordtails hold their own only in a big tank with places to hide.

What temperature suits both convict cichlids and swordtails?

74–79 °F. Convict cichlids need 74–82 °F, swordtails need 72–79 °F.

What size tank do convict cichlids and swordtails need together?

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