Our Hack to Instantly Clear Aquarium Water
Struggling to clear cloudy or dirty looking aquarium water, even after regular water changes? This simple reactor hack can clear your tank FAST using a sediment filter paired with a standard BRS-style carbon reactor.
In this video, we show you how to repurpose your aquarium reactor into a powerful water polishing tool that easily will remove fine particles, detritus, and debris and give you crystal clear water in hours. Perfect for freshwater and saltwater aquariums, especially after maintenance, aquascaping, or bacterial blooms.
Reactors & Cloudy Water FAQ
Why does my aquarium look cloudy after cleaning?
Cloudiness after maintenance is usually caused by fine particles suspended in the water, not a chemistry issue. Common culprits include:
- Dust
- Detritus
- Mulm (organic debris)
- Bacterial blooms
What is a “polishing filter”?
A polishing filter is a high-efficiency mechanical filter designed to remove extremely fine particles from the water column, leaving your tank crystal clear.
How does this reactor hack work?
Instead of using your reactor for chemical media (like carbon or GFO), you install a sediment filter cartridge (like the ones used in RODI systems) & then pump aquarium water through it. This creates a high-flow mechanical filtration loop that rapidly removes suspended particles.
What equipment do I need?
- Media reactor or RODI canister
- Sediment filter cartridge
- Small pump
- Tubing
How long does it take to clear the water?
It depends, but you can see a noticeable improvement within a few hours and often crystal-clear water after 24 hours.
Does this method replace my main filter?
No. Your main filter is still essential for housing your beneficial bacterial colony, as well as any existing ongoing mechanical filters and chemical filters you may be using. This method is just for speeding up the water clarity/clearing process.
How much does this setup cost?
If you don't already have a reactor, you can pick up a basic setup for around $50. Replacement sediment filters can be purchased for around $6.
When should I use this method?
Use this hack whenever your tank is cloudy after cleaning/water changes, stirring up substrate or detritus after rescaping or planting, or whenever you're dealing with visible suspended particles.
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