Scrub, Climb, and Filter
Algae clings to surfaces, so a robot needs an active scrubbing brush to dislodge it — not just suction. It also needs to climb walls and clean the waterline, where 90%+ of algae and bacteria accumulate. Finally, fine filtration matters: dislodged algae is microscopic, and a coarse filter sends it right back into the water.
Best Cleaners for Algae
The Dolphin Quantum, Premier, and Sigma all offer full floor-to-waterline coverage with aggressive brushing. Combined with NanoFilters™, they capture dead algae particles so your water clears faster after a treatment. As one of the largest authorized dealers and retailers of robotic pool cleaners online, we've hand-tested 70+ robots across every major brand — every recommendation below comes from real poolside experience, and every unit we sell is factory-direct with a full manufacturer warranty.
- HyperBrush™ / active brushes lift algae off plaster and tile.
- Waterline cleaning targets the algae hot zone.
- Run the robot after shocking to remove dead algae quickly — see our dead algae guide.
The Full Algae Recovery Workflow
- Test and balance water chemistry, then brush visible algae off surfaces.
- Shock the pool and run your main filtration overnight.
- Once algae is dead and settled, run a NanoFilter™-equipped robot to vacuum it out.
- Rinse the robot's filter, re-test chemistry, and schedule daily robot cycles for a week.
Prevention beats cure: a robot on a weekly timer constantly removes the organic debris algae feeds on. Rough surfaces like gunite and plaster are especially algae-prone — see those surface guides for specifics.
