Aquarium Accessories

Best Non-toxic Spray Paints For Internal & External Part Of Your Aquarium

Aquarium paints are yet another thing that you can use to make your aquarium glass look very attractive. You can use them in reef as well as freshwater aquariums, to paint the inside and outside. However, remember to use a non-toxic paint for the purpose!

What are epoxy paints?

Epoxy paints have a lot of advantages:

  • Chemical resistant
  • Extremely cleanable
  • Highly durable

These paints are designed for use in freshwater and marine aquariums. It is important to go for an epoxy paint that does not contain volatile organic compounds because VOC gases can harm the fish and aquatic plants.

What are the cons of not using aquarium-safe paints?

Most paints do not do well when exposed to water, which makes the aquarium full of it. Such paints makes the water colored and releases toxic chemicals. Some paints absorb water and soon begin to peel or bubble up, which fills the aquarium with tiny flakes. These flakes look like fish flakes to the fish and they will eat it! And you won't know that there is a problem until your fish is dead!

Safe paints for inside the aquarium

Aquarium-safe paints can be submerged in your fish tank. They don't peel, flake or leach chemicals when placed under water, keeping the marine life safe. Unless stated, paints should never be used inside the aquarium. I have shortlisted some paints that are suitable for both freshwater and saltwater aquariums.

Spray Paints

Spray paints are the best - no need of brushes and nothing to clean up. Here are some of the best aquarium internal spray paints in the market.

Krylon Fusion

Krylon K02758007 Fusion All-In-One spray-paints, Ink Blue
  • Superior adhesion and durability
  • Indoor/outdoor use with maximum rust protection
  • No sanding or priming required
  • Big button spray tip with spray any way capabilities
  • Dry to touch in 25 minutes or less

Last update on 2020-07-03 / Affiliate links / Images from Amazon Product Advertising API


The best quality spray paints for reef tanks, is Krylon Fusion. It clings to plastic, PVC, resin, dries quickly and has a clean finish. Moreover, it is available in a wide variety of colors!


This spray paint should only be used for painting plastics. It dries within 15 minutes, but takes almost a week to properly cure and become chip-resistant. Once a week is finished, you can rinse the tank in de-chlorinated water to remove any residue accumulated on the surface.

Plasti Dip

Sale
Performix 11203 Plasti Dip Black Multi-Purpose Rubber Coating Aerosol - 11 oz.
  • Protects coated items against moisture, acids and corrosion
  • Provides a non-slip, comfortable and controlled grip
  • Remains flexible, stretchy and will not crack or become brittle in extreme weather conditions
  • Provides protection against electrical shock, vibration, heat and deadens sound
  • Easy to remove from most surfaces when ready to return to original surface

Last update on 2020-07-03 / Affiliate links / Images from Amazon Product Advertising API


This paint looks and works like a spray paint, but dries into a firm rubber. This unique property of Plasti Dip makes it flake and crack-free, even after years of being submerged in your tank.


Once finishing the final coating, wait for 24 hours for it to dry and then rinse the tank with de-chlorinated water. You can use this spray for decoration purpose as it is truly safe.

Drylok

Drylok 27512 Latex Water Proofer, 1 Quart, White
  • GUARANTEED to stop water - withstands 10 pounds of hydrostatic pressure (PSI), equivalent to a wall of water 22 feet high
  • Fully transferable 10 Year Warranty
  • Helps protect against radon gas penetration by reducing vapor transfer
  • Low-odor formula complies with all current VOC requirements
  • Breathable film will not trap moisture in the masonry

Last update on 2020-07-03 / Affiliate links / Images from Amazon Product Advertising API


Drylok is more of a water proofer than a regular paint. It is usually used in large applications like ponds. But you can also use it inside the aquarium as it is fish-safe. It is used in 3D aquarium backgrounds and seals whatever you coat it in, thus protecting it from water.


This paint is available in a variety of colors but only the white one is considered aquarium-safe. However, you can create your own colored waterproof spray paint by mixing Drylok with Quikrete Liquid Concrete paint, which is available in colors like:


  • Red
  • Brown
  • Charcoal
  • Terracotta
  • Buff (Dark Orange/ Brown)

Note: Drylok Pro and Drylok Extreme contain fungicides which can kill not only the beneficial bacteria inside the aquarium, but also the fish.

Safe paints for outside the aquarium

The most common part of the fish tank which is painted, is the rear glass. Painting an aquarium's external makes the fish and plants more visible, as it blocks the distractions coming from the other side.

It doesn't matter what kind of paint you use on the rear part, as it will leave a smooth finish anyway. But overtime, the paint might scratch due to the wet environment or start peeling off bit-by-bit which will make it look even uglier.

Plasti Dip

For this purpose you can use Plasti Dip. It is easy to spray, gives clear coating and doesn't brittle or crack. And in case you want to change the aquarium background, you can simply peel it off! Since it is made of rubber, it is easy to remove.

Lastly, for stands and cabinets, you can use oil-based paints. They are water-repellent and hold up well to being splashed with water.

Conclusion

Different types of paints are available for different purposes. You can choose one of them according to your purpose and preference. You don't need to spend a lot on them, as they are easily available at your local hardware store at a reasonable rate.

GET FRESHWATER AQUARIUM GUIDE WORTH $99 FOR FREE!

[Revised and Updated for July, 2019]
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Written by Debra Hutchinson, founder of FishXperts

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GET FRESHWATER AQUARIUM GUIDE WORTH $99 FOR FREE!

[Revised and Updated for July, 2019]
Sign up to our newsletter to enjoy quality aquarium information and techniques in your email. As an added bonus you will also get Freshwater Aquarium Guide worth $99 for Free
AVAIL NOW
Written by Debra Hutchinson, founder of FishXperts
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