We recommend adding corals on day one when setting up a saltwater aquarium. Learn why corals respond differently to ammonia, how they help seed beneficial bacteria, and why fish should always wait until after the full cycle.

Desktop aquariums are reshaping the hobby. Discover why small tanks are more accessible, sustainable, and perfect for modern aquarium keeping.

Discover the top 5 accessories that make maintaining a desktop aquarium easier and more enjoyable. Improve stability, boost aesthetics, and upgrade your small tank setup.

Why Salinity Stability Matters When water evaporates, the salt stays behind. This means that the salinity level rises unless you replace the lost water with pure RODI. Thankfully, PNW Custom aquariums are designed to limit those swings from the start. Our Tip: We recommend using a salinity refractometer so that you always have an accurate reading of your salinity. Aim to be within the 1.024–1.027 range. Evaporation-Control Lids: Your First Line of Defense Every PNW Custom d

Learn about the top 5 beginner reef tank mistakes and how to avoid them. Perfect for desktop aquariums. Free checklists and compatibility charts included.

Just received your Coral Starter Pack from PNW Custom? Learn how to easily set up your new 40oz Micro Tank with simple coral acclimation, placement, and care tips for beginners. Start your desktop reef with confidence!

Learn how the PNW Custom 40oz Micro Reef makes it easier to see, feed, and enjoy the Bumblebee Shrimp.

Discover the perfect holiday gifts for every aquarist in the PNW Custom 2025 Holiday Gift Guide. From beginner-friendly desktop tanks to expert frag systems, freshwater setups, and fun stocking stuffers, find something for every aquarium lover this season.

Learn how to maintain your PNW Custom Desktop Aquarium with easy weekly routines, helpful accessories, and a free downloadable checklist for long-term tank success.

This guide will walk you through the full setup process: from unboxing to plugging everything in and preparing your reef for its first inhabitants.

Learn the basics of reef keeping, from cycling and filtration to choosing corals and fish. Discover why PNW Custom tanks are perfect for beginners.

Discover the best magnetic frag rack for your reef tank with PNW Custom’s comprehensive guide. Compare sizes, features, and designs to find the perfect rack for growing and displaying your coral frags.

Learn how to keep your desktop aquarium cool during the summer with these expert tips. Discover how a Cooling Kit and Auto Top Off from PNW Custom can help maintain stable temperatures and water levels.

At PNW Custom, we specialize in desktop tanks, and we’re here to bust the top five myths about these mighty little aquariums.

If you're looking for a unique, low-maintenance, and visually stunning aquarium setup, a macro algae tank might be exactly what you need.

Freshwater shrimp continue to rise in popularity and are a great addition to any desktop planted aquarium.

This guide will share essential techniques, materials, and inspiration to help you become a skilled aquascaper.

Let's talk invertebrates! Snails, crabs, shrimp and more - these creatures can sometimes be overlooked as a centerpiece for a reef, but they are a lot of fun to watch and can be found in a variety of striking colors. Note: Before adding invertebrates, it’s important that your aquarium has completed its initial cycle or has been running for at least a month after adding live rock and sand. This allows beneficial bacteria to establish, stabilizes water parameters, and ensures t

A lid is a small but crucial component that contributes to the safety and stability of a desktop aquarium, making it a must-have for any aqu

A small tank doesn't mean that you can't have a diverse and colorful reef.