Breeding / Open substrate spawners
Bumblebee goby
Open substrate spawners · Easy

Breeding the bumblebee goby

Cave spawner: eggs are laid inside a small cave and the male guards and tends them.

Step by step

Pairing

Group.

Breeding tank

Brackish tank with caves.

What starts it

Warm water and brackish conditions.

Eggs and young

About 100-200 eggs per spawn, laid in a cave; incubation takes 7-9 days and fry are free-swimming (pelagic) for the first few weeks.

Raising the fry

Infusoria.

Common mistakes
  • Fresh only
  • Poor food
  • Aggression

Male or female

Mature females are rounder, especially when full of eggs; males take on a reddish tinge in spawning condition.

Can I breed it in my tank?

  • Good for a first breeding project.

Day-by-day plan

Typical for open substrate spawners

  1. 21 days beforeLet a pair form

    Grow up a group and let a pair choose each other. Give them a flat stone or broad leaf.

  2. Day 0Spawning

    The pair cleans the stone and lays rows of eggs. Both guard them.

  3. Day 3Eggs hatch

    Wrigglers hatch in 2–4 days and are moved to pits by the parents.

  4. Day 7Free swimming

    Feed baby brine shrimp several times a day. Parents often herd the fry.

  5. Day 42Grow-out

    Move fry to a grow-out tank before the parents spawn again.

A general guide for this breeding type. Days change with temperature and species.

Simulator: guided

Stage 1 of 5Let a pair form

Grow up a group and let a pair choose each other. Give them a flat stone or broad leaf.

Simulator: try it yourself

Set up a virtual breeding tank and see what would likely happen.

No spawning
  • Without live or frozen food the parents aren't in breeding condition.

An educational estimate from the breeding rules, not a promise.