Can yellow labs live with dwarf neon rainbowfish?

Verdict
Yes, with care

Yes, with care. Yellow labs and dwarf neon rainbowfish can share a tank, but watch one thing. Different water: yellow labs want pH 7.8–8.6, dwarf neon rainbowfish want pH 6.5–7.5.

Electric yellow cichlidElectric yellow cichlid75–82°F · pH 7.8–8.6 Dwarf neon rainbowfishDwarf neon rainbowfish75–82°F · pH 6.5–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Electric yellow cichlid 75–82°Dwarf neon rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Electric yellow cichlid 7.8–8.6Dwarf neon rainbowfish 6.5–7.5
No pH suits both. One would live in the wrong water all the time.

Size to scale

Electric yellow cichlid · 4 inDwarf neon rainbowfish · 2.5 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

Electric yellow cichlidDwarf neon rainbowfish
Temperature75–82 °F75–82 °F
pH7.8–8.66.5–7.5
Adult size4.0 in2.5 in
Minimum tank40 gal20 gal
TemperamentSemi-aggressivePeaceful
Swims atAll levelsMiddle
GroupGroups of 4+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for yellow labs

All electric yellow cichlid tank mates

Better tank mates for dwarf neon rainbowfish

All dwarf neon rainbowfish tank mates

Questions

Can yellow labs live with dwarf neon rainbowfish?

Yes, with care. Yellow labs and dwarf neon rainbowfish can share a tank, but watch one thing. Different water: yellow labs want pH 7.8–8.6, dwarf neon rainbowfish want pH 6.5–7.5.

What temperature suits both yellow labs and dwarf neon rainbowfish?

75–82 °F. Yellow labs need 75–82 °F, dwarf neon rainbowfish need 75–82 °F.

What size tank do yellow labs and dwarf neon rainbowfish need together?

At least 40 gal, set by the electric yellow cichlid. Add space for each extra fish.