Spawning cone for discus JBL DisCon

Regular price $17.00
Regular price Sale price $17.00
$5.66 × 3 with no fees

The DisCon is a spawning cone made of neutral plastic for discus ready to spawn. Placed on the bottom of the tank, in a quiet area, it gives the pair a smooth surface that they clean before laying their eggs on it.

The cone is 25.5 cm high and can be disinfected with very hot water before each reuse.

Ref. J6136600·Aquarium accessory
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The summary

  • What it is: a spawning cone in neutral plastic, intended for discus ready to spawn.
  • What you receive: a cone 25.5 cm high with a base diameter of 11.1 cm.
  • How to maintain it: it is disinfected with very hot water, then rinsed for 3 days.
  • Where it goes: on the bottom of the tank, in a calm area, away from the filter current.

Neutral plastic spawning cone, 25.5 cm, for discus pairs

The JBL DisCon is a spawning cone for discus: it gives the pair a smooth, sloping surface on which to lay their eggs. It stands 25.5 cm tall with a base diameter of 11.1 cm, is made of inert plastic, is stable and unbreakable, and sits directly on the bottom of the aquarium. Its conical shape is the one sought out by discus ready to spawn, which usually choose a vertical or sloping surface in their natural habitat.

🥚 A smooth wall to spawn on

The pair easily clean its continuous wall before spawning, because it has neither the crevices of a root nor the grain of a stone. Its wide base stops it from tipping over when you work in the tank, and you can move it with one hand to place it in the corner the pair have chosen. The plastic it is made of is inert: it releases nothing into the water, which matters in a breeding tank where you closely monitor the total hardness GH.

A thermometer and a fine net for the spawn

The suction-cup aquarium thermometer sticks on at the height of the cone and gives you the temperature of the area where the eggs are laid, which can differ from that at the top of the tank. The fine-mesh net, with its 8 cm net, then lets you move fry without injuring them, which a coarse-mesh net does not allow. Both items are useful from the very first days of spawning.

A 3-day rinse after a cleaning product

After cleaning with an aquarium cleaning product, the cone spends 3 days in tap water changed every day before going back into the tank. A residue of cleaner on the spawning surface can jeopardise the next brood.

Place the cone in a calm area, away from the direct current of the filter and from busy spots, then let the pair adopt it. As it stands 25.5 cm high, the water depth must clearly exceed this figure for its top to stay submerged, which limits it to tanks with at least 30 cm of water. You can move it a few centimetres during the first days, while you find the spot where the pair comes to clean it.

🧽 Cleaning between spawnings

Between spawnings, the cone needs disinfecting before it goes back in the tank, and the procedure should be followed to the letter. Soak the cone for 2 hours in very hot water, or bring it to the boil in a bain-marie. If you prefer a cleaning product, dip it briefly in an aquarium cleaner and scrub it. In every case, before putting it back in the tank, leave it for 3 days in tap water that you change every day, as it is this last step that flushes out the cleaner's residues.

🐠 Which fish it suits

The DisCon is designed for discus, the only species named on its packaging, and its 11.1 cm diameter at the base is sized for a pair of adult discus. Other cichlids that spawn on a vertical surface, such as angelfish, can use it too, provided you have a tank that is tall enough. The cone complements the conditioning of your breeding pair, which relies on a varied diet, such as a staple food for cichlids, and on stable, regularly tested water.

Technical specifications

The item

Height
25.5 cm
Diameter at the base
11.1 cm
Material
Neutral plasticIt releases nothing into the water of the breeding tank.
Item reference
6136600

Use

Target species
Discus ready to spawn
Installation
Placed on the bottom, in a calm areaThe pair picks its spot, and the cone can be moved with one hand.

Maintenance

Disinfection soak
2 hours in very hot waterBoiling in a bain-marie gives the same result.
Rinsing before reuse
3 days, water changed every day

To budget for separately

Reading the temperature
Suction-cup thermometer
Moving the fry
Fine-mesh net

2 further specifications are available in the detailed view.

In the box

  • 1 spawning cone for discus

Dimensions, material, reference and cleaning procedure taken on 20/09/2026 from the JBL manufacturer's page.

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delivery time

This plastic cone travels in a small parcel. It is combined with the rest of your order, and the cost is calculated in the basket according to your destination.

Frequently asked questions

6 questions

6 key questions

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