Breeding Discus fish – 5 Ways to Encourage Spawning

How to Breed Discus Fish

Are you having trouble getting your discus fish spawn? If that’s the case, then you’re not alone!

I used to have the same problem, and it took me a few tries and errors before I was ultimately successful in getting my discus to spawn.

In this article, I’m going to share with you some tips on how to encourage your discus to spawn.

Provide Them with a Rich Diet

The easiest way to entice your discus to spawn is to provide them with a rich and nutritious diet. For this purpose, you should feed them frozen bloodworms once a day for about a week.

In addition to that, you can give them white worms, black worms, glass worms, adult brine shrimp, mosquito larvae, large daphnia, and chopped-up crab sticks or prawns.

Just make sure that whatever you feed them is clean and free of parasites. Also, don’t over overfeed them as this will discourage the breeding discus pair from spawning.

Change Your Tank’s Water Frequently

Of course, you know that you need to change your tank’s water on a regular basis, but did you know that water changes can actually encourage your discus to spawn?

It’s true!

If you’re currently changing 25% of the water in your tank every week, try switching to every other day for a period of time.

In addition, every time you do a water change, make sure to vacuum the gravel to remove any uneaten food or waste. Any grit or grime in the gravel will make the water dirty and unsuitable for spawning.

If you’re concerned that you won’t do the water changes often, consider installing a high-quality biological filter to ensure that the water remains clean and free of toxins.

Maintain Proper Water Parameters

Water parameters play a crucial role in breeding the discus fish, so it’s important to adjust and maintain them accordingly.

If the temperature is currently 82 degrees Fahrenheit, then gradually increase the temperature to 86 degrees and leave it there for a few days to a week.

Then, when you change the tank’s water, reduce the temperature back to 82 degrees. This way you can stimulate their spawning environment and induce them to breed.

Another water parameter to keep an eye on is the pH level. Ideally, it should be between 6.0 and 6.5. Anything lower or higher than that range will make these guys uncomfortable and less likely to spawn.

As for the water hardness, you should aim for around 1 to 4 dGH.

Provide Suitable Tank Size

Discus fish will never spawn if they feel cramped in their tank. For this reason, you need to make sure you provide them with enough space to move around and lay their eggs.

Ideally, you should have a 25 or 30-gallon tank that is tall rather than wide. This will give them more vertical space to swim in and make them feel less crowded.

Separate Your Discus

Before breeding your discus, you need to keep them apart for a few days. This will help ensure that the process goes smoothly and that you end up with healthy offspring.

To do so, you can place a tank divider or relocate the male to another aquarium. Once you’ve done that, make sure to feed them well and keep an eye on the water parameters.

Also, keep an eye on them for the next 24 hours, as males can show aggressive behavior toward female discus fish when they reunite after being apart for a long time.

Give Your Discus More Spawning Surfaces

The spawning process will go much smoother if your pet fish have more spawning surface to lay their eggs on.

For this reason, you can use spawning cones, a PVC pipe, plastic plants, or some spawning slates. Just make sure that the surface is smooth so that the eggs don’t get stuck!

Make Sure the Tank Is in a Quiet Area

Scared or stressed discus fish will never spawn, so it’s important to make sure that their tank is in a quiet area where they can feel safe.

Try to minimize the noise and activity around the tank as much as possible, and to give them more seclusion, cover the aquarium walls with paper or cardboard.


When Do Discus Eggs Hatch?

Within 50-60 hours after fertilization, the eggs will hatch into baby fish that will take a few days to develop until they can swim freely in the tank.

What Do the Baby Fry Eat at Their First Few Dyas?

The free-swimming fry will follow their parents, feeding on the mucus that develops on adult discus fish bodies.

How Long Should the Fry Be Kept with Their Parents? 

You should keep the discus fry with their parents for between 10 and 14 days, after which you can start to transfer them to a grow-out tank.

Are There Any Risks Associated with Breeding Discus Fish?

If you don’t maintain proper water conditions or provide enough space, the fry can be deformed or even die. Also, overcrowding can lead to fighting and aggression among breeding pair.

Last Words

Breeding fish can be a bit tricky for many people, but if you follow these tips, you’ll be sure to have success! Just remember to take your time, be patient, and enjoy the process.

Also, make sure to keep an eye on the water parameters and provide plenty of space for your discus fish to breed. With a little bit of effort, you’ll be able to see baby fry swimming around in no time!

I hope this guide was helpful. If you have any questions or would like to share your own experiences, please leave a comment below.