IceCap Aquariums
IceCap offers a range of all-in-one aquariums designed to make saltwater reefing more accessible. Their cube-style tanks feature built-in rear filtration, giving you space for a return pump, heater, and media without the need for external plumbing or a sump.
These tanks are especially popular with beginner hobbyists and anyone looking for a simple, compact reef setup. Sizes range from smaller 10- and 20-gallon models to full marine starter kits that include gear like ATOs, filter media, salt, and test kits — making them an easy option for getting a new tank up and running quickly.
Choosing the Right IceCap Aquarium
IceCap Cube Aquariums (10G & 20G Models)
IceCap’s AIO cube tanks are simple, clean, and easy to maintain. Each model includes a built-in rear filtration chamber with space for your return pump, heater, and media. These tanks come rimless with a modern look and are ideal for small reef builds, soft corals, and nano fish. If you're looking for a tank you can customize over time, these are a solid foundation.
IceCap AIO Marine Starter Kits
These kits take the cube tanks and bundle them with key accessories — like an auto top-off system, media, salt mix, rock, and sometimes a heater or pump. They’re a great option if you’re setting up a tank for the first time and want to avoid guessing what gear you need. The included components are well-matched for the tank size, so you can focus on aquascaping and livestock instead of worrying about compatibility.
Optimizing Your IceCap Aquarium
Even though IceCap tanks are small and straightforward, keeping things stable is just as important as with any reef system. The rear filtration chamber handles the basics well, but it helps to stay ahead of maintenance — filter floss and media should be swapped or rinsed weekly to prevent buildup and flow issues.
Because the water volume is relatively low, evaporation shows up quickly. Using the included ATO (or adding one if you're starting with just the cube) will help maintain consistent salinity and prevent pump burnout from low water levels in the return chamber.
Lighting upgrades can also make a big difference depending on what you plan to keep. While IceCap’s kits are good for soft corals and zoas, higher light-demanding corals may need a fixture with stronger PAR and control. The tank design makes it easy to swap out or mount a compact LED light with minimal effort.
Lastly, avoid overstocking. These tanks do best with a light bioload — a pair of clownfish, a few small inverts, and some hardy corals go a long way in keeping things balanced without overwhelming the system.
Expert Tips
- Monitor the back chamber daily. It’s where evaporation hits first — topping off consistently or using an ATO is key to stability.
- Don’t overload the filter compartment. Cramming in too much media can restrict flow and reduce oxygenation. Stick to the essentials.
- Upgrade the return pump if needed. The stock pumps are fine, but a quiet, higher-flow model can improve circulation without needing extra powerheads.
- Use a magnetic scraper designed for nano glass. The cube design makes it easy to clean, but avoid oversized magnets that can scratch the corners.
- Keep the lid tight. These tanks are shallow and open — a mesh lid helps prevent jumpers without trapping heat or reducing light.
Installing Your IceCap Aquarium
Start by placing the tank on a level, stable surface — even smaller tanks get heavy when filled. If you're using the IceCap stand, double-check for wobble or uneven weight distribution before filling. Rinse your rock, sand, and equipment first, then position them in the tank before adding saltwater.
Once filled, power on the return pump and check the water level in the back chamber. That’s where you’ll be adding top-off water, placing your heater, and monitoring overall flow. If you're using the full marine kit, most components are pre-sized to fit the tank — just follow the included setup guide to place the ATO, media, and accessories in the right spots.
Avoid blocking the overflow slots with rockwork or equipment, and leave enough space for maintenance access. The more organized your cable and tubing layout is from the beginning, the easier it’ll be to work on the tank down the line.
Maintenance Tips for IceCap Tanks
- Swap or rinse media weekly. Sponges, floss, and carbon will clog quickly — keeping them clean maintains flow and keeps nutrients in check.
- Top off water daily (or run the ATO). Even in humid rooms, shallow tanks can lose water fast. An ATO protects your salinity and return pump.
- Wipe down the glass and corners often. Cube tanks show algae growth faster — a few seconds a day with a scraper keeps it from building up.
- Clean the pump and nozzle monthly. A vinegar soak keeps your return pump running quietly and prevents salt buildup or reduced flow.
Inspect the ATO sensor and reservoir regularly. Salt creep, air bubbles, or low water levels in the reservoir can cause false triggers or dry runs.
