Choosing the Perfect Tank for Your Reef Aquarium: Expert Tips for Beginners and Beyond

Choosing the Perfect Tank for Your Reef Aquarium: Expert Tips for Beginners and Beyond

When it comes to setting up your very first saltwater aquarium, choosing the right tank can feel like a monumental decision. It’s not just about picking a box of water to house your fish and corals; it’s about finding the right fit for your space, your lifestyle, and your future in the hobby.

Choosing the right tank is the first step to setting yourself up for success in the saltwater aquarium hobby. Sure, it sounds like a simple task—after all, it’s just a tank, right? But there’s more to it than meets the eye. The size, the location, the equipment—it all comes together to ensure your aquatic pets thrive.

We’re going to break down some key considerations that every new reefer should keep in mind when selecting a tank, plus some tips on how to make the process as smooth as possible. Whether you’re a complete beginner or a seasoned hobbyist, the tank you choose will set the foundation for everything that comes next.

The Perfect Size Tank for Beginners

When it comes to tank size, the 40-gallon breeder is an excellent option for beginners. This size is affordable, big enough for common saltwater fish, and versatile enough to fit in most spaces. It’s also the ideal size for learning how to balance the water parameters and get a feel for tank maintenance. With a 40-gallon tank, you’ll have room for juvenile fish, some beginner-friendly corals, and a solid filtration system without being overwhelmed.

Where to Place Your Tank

Now that you’ve chosen your tank, it’s time to figure out where to put it. The right location for your tank is crucial to ensuring both the success of your reef and your enjoyment of it. Here are a few key factors to keep in mind:

  • Avoid Direct Sunlight: Sunlight can cause algae growth and create unstable water temperatures.
  • Out of the Way of Moving Objects: Make sure your tank isn’t near windows or doors where people or pets might accidentally bump into it.
  • Access to Power Outlets: Ensure you have access to power outlets to plug in equipment like pumps, heaters, and lights, without overloading circuits.
  • Visibility: This is often overlooked, but placing your tank in a spot that you’ll see daily is essential. The more you engage with your tank, the better you’ll understand it and be able to notice when something’s off. Whether it’s your living room, office, or recreation room, make sure you place your tank in a high-traffic area where you’ll want to spend time enjoying it.

Painting the Back Panel – A Simple Hack for a Polished Look

Once your tank is in place, consider painting the back panel black. It’s an easy way to hide unsightly equipment, wires, and the back of the tank while also adding a sense of depth. We recommend using Rust-oleum Black Enamel paint and a smooth, lint-free roller. If you’re using a Red Sea tank, you’ll be in luck because these tanks come with black back panels as a default!

Keep It Level – Shims to the Rescue

When setting up your tank, it’s vital to make sure it’s level. Saltwater aquariums can be heavy—around 8.6 pounds per gallon—and you don’t want the added weight of water to throw your tank off balance. You can test the level by filling the tank with tap water temporarily. If needed, use pre-made shims from a hardware store to make adjustments. Just slide them under the stand until everything is perfectly level. This ensures that the weight is distributed evenly and prevents stress on the tank.

Power Up Safely

You’ll need a reliable power source to keep all your equipment running smoothly, and it’s worth investing in a high-quality surge protector to prevent any electrical issues. Avoid the bargain bins when it comes to power strips—your reef tank is a significant investment, and you want to protect it. Make sure your surge protector has enough outlets for your equipment, and if you need additional outlets, consider getting a second power bar.


Choosing the right tank is more than just picking a container for water—it’s about setting up a sustainable, thriving environment for your aquatic pets. Follow these tips, and you’ll be well on your way to enjoying your new saltwater tank for years to come.

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