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You can put monstera in a fish tank, but only in a specific way.
The answer is yes, but the setup matters a lot.
When people ask can you put monstera in a fish tank, they usually imagine the whole plant living underwater in the aquarium.
The honest truth is that a fully submerged monstera won’t survive long because it isn’t a true aquatic plant.
However, you can put monstera in fish tank water with just the roots submerged and the leaves growing above the surface.
This setup is called a riparium, and it benefits both your monstera and your fish.
Many fish keepers love the look of a live plant growing straight out of the tank.
In this post, we’ll cover why you can put monstera in a fish tank, the rules to follow, and the best way to do it.
Let’s dive in.
Why You Can Put Monstera In A Fish Tank
Monstera is a tropical plant that naturally grows in humid environments.
In its native habitat, it climbs trees and sends its aerial roots down into water or soaking wet soil.
That’s why you can put monstera in fish tank water and have it adapt remarkably well.
The leaves, though, always stay above the waterline.
Here are the main reasons this works.
1. Monstera Roots Are Made For Moisture
Monstera roots are incredibly tolerant of wet conditions.
They can survive in water for long periods because they evolved for tropical rainforests.
When you put monstera in a fish tank, the roots happily take up water and nutrients from the aquarium.
They won’t rot easily if the water is clean and well oxygenated, which a good fish tank provides.
Placing monstera in fish tank water is a great way to grow it without any soil.
2. It Acts As A Natural Filter
Another great reason to put monstera in a fish tank is the benefit to your fish.
The roots absorb nitrates and other waste products from the water.
Fish waste breaks down into nitrates, and these are exactly the nutrients monstera loves.
So when you put monstera in your fish tank, it helps keep the aquarium cleaner while feeding itself.
It’s a win-win for everyone.
3. Fish Enjoy The Hiding Spots
Adding monstera to a fish tank also makes a more natural environment.
The long dangling roots provide shade and hiding spots for shy species.
This reduces stress and makes the tank look gorgeous at the same time.
So asking can you put monstera in fish tank setups leads to a setup everyone enjoys.
Important Rules Before Putting Monstera In A Fish Tank
Now that you know can you put monstera in fish tank environments is a yes, there are rules to follow.
If you ignore these, your monstera may die and the water quality could suffer.
Let’s look at the most important things to remember.
1. Leaves Must Stay Above The Water
The number one rule when you put monstera in a fish tank is that the leaves cannot be fully submerged.
Monstera leaves need air because they aren’t adapted to underwater life.
If the leaves sit below the waterline, they will start rotting within days.
The correct way to put monstera in fish tank water is to keep the plant above the tank with only the roots hanging in.
You can use a plant clip, a suction cup holder, or a branch to hold it in place.
2. Choose The Right Tank Size
You can put monstera in a fish tank of almost any size, but bigger is better.
Monstera roots can get huge and may take over a small aquarium.
In a tiny tank, the roots can block water flow and make swimming hard for your fish.
For small setups, use a young monstera and trim the roots regularly.
This way, putting monstera in fish tank water won’t cause crowding problems.
3. Mind The Lighting
Monstera grows best in bright indirect light.
If the tank light is too weak, the plant will grow slowly and may drop leaves.
If the light is too strong, the leaves can burn, especially near the top.
So when you put monstera in a fish tank, place it near a window or use a moderate grow light.
Your fish and monstera will both appreciate balanced lighting.
How To Put Monstera In A Fish Tank Successfully
Ready to put monstera in fish tank water?
Follow these steps and you’ll get great results.
1. Start With A Rooted Cutting
The best plant to put monstera in fish tank water is a cutting with established roots.
Take a stem cutting with at least one node and place it in a jar of water.
Wait until the roots are a few inches long before moving it into the aquarium.
That way, when you put monstera in the fish tank, the roots are strong enough to adapt.
2. Secure The Plant Above The Tank
Position your monstera so the roots are in the tank but the stem stays dry.
You can put monstera in fish tank setups using a simple plant hanger on the rim.
Make sure the stem isn’t sitting in the water because that leads to rot.
Poke the roots through the hanger and let them dangle into the aquarium.
Within a few weeks, the roots will grow deeper and establish themselves.
3. Keep The Water Clean And Oxygenated
Good water movement from a filter or air stone keeps the roots healthy.
Clean water also stops algae from coating the roots.
Once you put monstera in fish tank water, it might grow faster because it loves the nutrients.
Just stay on top of regular water changes and your monstera will thrive.
So, Can You Put Monstera In A Fish Tank?
You can put monstera in a fish tank, but only when the leaves stay above the waterline.
Yes, you can put monstera in fish tank water with the roots submerged, and the plant will do great.
The roots help filter the water, the fish get shade, and the monstera grows beautifully.
The golden rule is simple: roots in the water, leaves in the air.
So go ahead and try putting monstera in fish tank setups the right way.
Your fish tank will look amazing and your monstera will thank you.