AquaStocker

Electric Yellow Lab Care Guide

Labidochromis caeruleus · Moderate care · 40 gallon minimum

Updated June 2026
By the AquaStocker team · How we source our data
Electric Yellow Lab (Labidochromis caeruleus)
Photo via Wikimedia Commons 📌 Save

A brilliant yellow Mbuna cichlid for hard, alkaline African setups; among the most peaceful Lake Malawi fish.

Adult size4.0"
Min tank40 gal
Temp74–82°F
pH7.6–8.6
TemperamentSemi-aggressive
SocialGroups of 4+
Care levelModerate
DietOmnivore

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How big does a electric yellow lab get?

A electric yellow lab (Labidochromis caeruleus) reaches about 4.0 inches as an adult. Plan tank size and tank mates around the adult size, not the small fish you buy at the store.

Tank size & setup

Give a electric yellow lab a minimum of 40 gallons, with water at 74–82°F and a pH of 7.6–8.6. Keep them in groups of at least 4 — they are shoaling fish and become stressed and washed-out alone. As a moderate-care, omnivore species, a stable, cycled tank with the right diet keeps them healthiest.

Good tank mates

Pair a electric yellow lab with peaceful species that share its temperature and pH range. Compatible options include:

About the electric yellow lab

Labidochromis caeruleus is a species of cichlid endemic to the central western coastal region of Lake Malawi in East Africa. It has many common names, such as lemon yellow lab, the blue streak hap, the electric yellow or yellow prince, depending on the colour morph. The naturally occurring yellow-coloured variant from Lion's Cove is one of the most popular cichlids amongst aquarium hobbyists.

Recommended gear for electric yellow labs

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FAQ

What size tank does a electric yellow lab need?
At least 40 gallons. Because they shoal, budget for a group of 4+ rather than a single fish. Bigger is always more forgiving for water quality.
Is the electric yellow lab good for beginners?
It's a moderate-care species, so dial in a stable, cycled tank and correct water parameters first.

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