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Breeding / Cave spawners
Cave spawners · Hard

Breeding the leopard cactus pleco

Cave spawner; the male guards the brood. Has been bred in aquaria.

Full species page

Step by step

Pairing

Grow out 6-8 juveniles and let a pair form; keep the group in a well-oxygenated, stable tank.

Breeding tank

100-200 L tank with strong flow, many caves sized to the fish (PVC or ceramic tubes), and very clean, warm water.

What starts it

Cool water changes, increased flow and a seasonal drop in temperature, plus rich protein feeding.

Eggs and young

The male guards a small clutch (5-30 large amber eggs) in the cave for around 5-10 days until they hatch; the fry carry a big yolk sac.

Raising the fry

Fry stay in the cave until the yolk is gone, then feed on sinking algae wafers, blanched veg and crushed flake. Keep nitrate low.

Common mistakes
  • Too few caves
  • Warm, stagnant water
  • Moving the male while he guards eggs
Setup blueprint

Home setup

One breeding tank for the leopard cactus pleco, drawn to scale from the breeding guide.

150 cm long · 25 cm deep30 cm12345
  1. 1
    Breeding tank: 100 L · about 150 × 25 × 30 cm, 100–200 L from the breeding guide
  2. 2
    Sponge filter and air pump · gentle and safe for eggs and fry
  3. 3
    Heater, 24–30 °C · this species' normal range
  4. 4
    Slate or flat stone · named in the guide
  5. 5
    Cave · named in the guide

Water: 24–30 °C · pH 6–7.5

A plan from the breeding guide and an adult size of 25 cm. Tank shape is a standard 2 : 1 : 1.2 box, at least 6 adult lengths long. Check each step in the guide above.

Setup blueprint

Business setup

A 160 cm rack for breeding the leopard cactus pleco in numbers.

12234160 cm rack, 3 shelves
  1. 1
    1 breeding tank, 100 L · about 150 × 25 × 30 cm, set up like the home tank
  2. 2
    2 grow-out tanks, 648 L each · about 150 × 60 × 70 cm; twice the breeding tank, never smaller than this species' smallest tank
  3. 3
    Shared air pump and air line · one line along each shelf feeds a sponge filter in every tank
  4. 4
    Heat the room or each tank · 24–30 °C

In total: 3 tanks, about 1,396 L of water. A litre of water weighs about 1 kg, so check that the floor and rack can take the weight.

Sizes are worked out from the breeding tank in the guide. Tanks fit a standard 120 cm rack when they can; bigger tanks go on their own stands.

Male or female

Adult males have a broader head and more odontodes than females, especially on the leading pectoral-fin rays and cheeks (interopercular area).

Can I breed it in my tank?

  • Hard: for experienced breeders.

Day-by-day plan

Typical for cave spawners

  1. 21 days beforeSet up caves

    Give one cave per pair or female, plus a varied diet.

  2. Day 0Spawning in the cave

    Eggs are laid inside the cave and guarded, usually by the male.

  3. Day 4Eggs hatch

    Eggs hatch in 3–7 days depending on the species and temperature.

  4. Day 10Fry leave the cave

    Feed baby brine shrimp and crushed food. Plecos need wood and vegetables.

  5. Day 60Grow-out

    Fry grow on in their own tank.

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

Simulator: guided

Stage 1 of 5Set up caves

Give one cave per pair or female, plus a varied diet.

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.
  • Corydoras usually need a big, cooler water change (like rain) to start spawning.

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