The Top 5 Myths About Desktop Reef Tanks

Desktop reef tanks are often misunderstood. Despite their compact size and aesthetic appeal, many reefers still believe common myths that prevent them from experiencing the joy of keeping a small saltwater aquarium. At PNW Custom, we specialize in desktop tanks, and we’re here to bust the top five myths about these mighty little aquariums.

Photos by reefndaddy

Myth 1: “Small tanks are too hard to maintain.”

It’s a common belief that smaller tanks require constant attention, but the truth is, they’re much quicker and easier to maintain. Yes, they may need more frequent water changes, but when each change only takes a few minutes and less than a gallon of water, it’s hardly a chore. You won’t be hauling buckets across the house or spending hours on maintenance like with a larger system.

Tip: Online resources like our FREE Weekly Maintenance Checklists, YouTube tutorials and Compatibility Charts provide support and tips for beginners.

Myth 2: “Small tanks have too many parameter swings.”

Parameter swings can happen faster in small volumes, but with the right tools in place, stability is absolutely achievable. PNW Custom tanks are designed specifically to reduce risk and improve long-term success. Our built-in filtration systems and media baskets help maintain consistent nutrient levels and promote beneficial bacteria. Our polycarbonate lids drastically cut down evaporation, reducing salinity swings and keeping things stable even between top-offs.

Tip: Pair your desktop tank with an Auto Top Off and monitor your temperature, and you’ll be amazed at how consistent your parameters stay.

Myth 3: “You can’t keep corals in a small tank.”

Our 40oz Micro Tank has supported everything from euphyllia gardens to LPS showpieces, and even a few acroporas! When designing our aquarium systems, PNW Custom kept the specialized light and flow needs of coral in mind. Our integrated lighting systems deliver an optimal spectrum for both coral color and growth, producing over 200 PAR at the water’s surface and up to 150 PAR on the aquarium floor. That’s strong enough to support even high-demand SPS corals. If they fit, they can thrive.

Tip: Start with hardy, fast-growing corals like zoanthids or mushrooms to build confidence, then branch out to LPS or SPS as you fine-tune your parameters and light placement.

Myth 4: “Fish will be miserable in such a small space.”

False! In fact, some of the most beautiful gobies and corals thrive in nano setups. There are many fish that remain under 2 inches and enjoy living in a desktop aquarium since it mimics their natural environment. In a small tank, tiny gobies are protected from predators that might harm them in a larger system. Desktop reef tanks aren’t for tangs or wrasses, but they’re perfect for nano gobies, sexy shrimp, or even a small clownfish in a 5 gallon setup. When stocked appropriately, your fish can thrive with minimal stress.

Tip: Download our Fish Compatability Chart to see which fish will be the most well-suited for your PNW Custom aquarium.

Myth 5: “It’s not a ‘real’ reef tank unless it’s big.”

This one couldn’t be further from the truth. A well-stocked desktop reef is every bit a reef tank, just in a smaller footprint. Small tanks offer the same beauty, biodiversity, and excitement as large systems, but with far less space, equipment, and cost required. In fact, desktop tanks often become the centerpiece of desks, countertops, or even coffee tables, bringing life to places a traditional tank never could.

In recent years, small reef tanks have surged in popularity, thanks to advancements in lighting, filtration, and compact all-in-one designs. More and more reefers are choosing compact tanks as a low-maintenance way to enjoy the hobby without committing to a massive setup.

Tip: Learn more about Mike Wolz's traveling Micro Reef with 54 different coral species. This little tank proves that you can do big things with small water volumes.

Embrace Your Desktop Reef Journey

Understanding these myths about desktop reef tanks can empower aspiring aquarists to dive into this captivating hobby. While starting a reef tank requires dedication, patience, and a willingness to learn, the rewards are immense.

Do not let misconceptions prevent you from experiencing the joy of maintaining a desktop reef tank. With the right knowledge, resources, and equipment, you can create a beautiful slice of ocean right in your home or workspace. Whether captivated by colorful corals or the charm of marine creatures, the world of aquarium-keeping is waiting for you.

Ready to start your own? Explore our desktop tanks here, and let us help you create something small that makes a big impact.