ULTIMA II BIO-MECHANICAL AQUA FILTER

Aqua Ultraviolet’s Ultima II pond filter is an advanced bio-mechanical filter designed specifically for extreme loads and elevated rates. It features our patented cyclonic backwash system that will do all the dirty work for you – just set the value to backwash and rinse, and the filter’s internal jets do it all. These filters are seeded with bacteria that convert dissolved toxic nitrogenous waste like ammonia into compounds that won’t harm aquatic life and work like a centrifuge.

Ultima II pond UV filters help create an environment that better supports aquatic life by removing ammonia and accumulated debris from the water fish live and swim in. They’re essential for aquaculture facilities, large aquarium systems, and residential or commercial ponds, and they’ll work with any pump.

Here, you’ll find our selection of Ultima II filters, each able to accommodate different flow rates depending on your Ultima II model. Explore your options and get the right Ultima II pond filter for your needs at Aqua Ultraviolet today!

FAQ

What is an Ultima II filter and why do I need one?

An Ultima II filter is a bio-mechanical pond/water filter that combines mechanical debris removal with biological filtration. It captures solids while cultivating beneficial bacteria that break down ammonia and other harmful compounds, helping maintain water clarity and a healthy aquatic environment.

How does the Ultima II cyclonic backwash system work?

The cyclonic backwash design uses internal jets to create a vortex that loosens and expels trapped debris. When you switch to backwash mode, the jets rinse the media for you, reducing manual cleaning effort and maintaining filtration efficiency.

Which model should I choose for my pond or system?

Pick a filter whose flow capacity matches or exceeds your pump and system size. Consider factors like pond volume, fish load, and peak flow rates. Oversizing is safer than undersizing. You can also use multiple units in parallel for very large systems.

How often should I backwash or clean the filter?

For moderate loads, backwash every 1–2 weeks. In heavy load or debris environments, you may need to backwash more frequently. Also inspect media and remove blockages during routine maintenance.

Does the filter support biological media or bacteria seeding?

Yes. Ultima II filters are designed to house biological media and are often pre-seeded with beneficial bacteria. These microorganisms convert toxic nitrogen compounds into less harmful forms, contributing to stable water chemistry.

Can the filter handle heavy debris or high organic load?

Yes. The robust design of Ultima II filters is intended for challenging or demanding environments with high particulate loads. The cyclonic action helps prevent clogging and prolongs media life.

Is the filter energy-efficient and low maintenance?

Yes. The mechanical + biological approach reduces the need for constant cleaning. The backwash system automates maintenance, and the units are engineered for minimal pressure drop and efficient flow.

Will the filter improve water quality beyond clarity?

Absolutely. In addition to removing suspended solids, the biological filtration helps reduce ammonia, nitrites, and other nitrogenous waste. A clean, balanced system can reduce algae growth, improve oxygenation, and support healthier aquatic life.