eSHa Protalon 707 - Anti Algae Treatment. eSHa Protolon 707 is an effective treatment that will eliminate all algae in your aquarium. Unlike other treatments, it does not harm aquarium plants (it actually helps them grow!) and it is safe for fish and filters. Protalon 707 is effective against Filamentous algae, Beard algae, Slime algae, Black algae, Green algae, Suspended algae and thousands of other species. eSHa Protalon 707 is a unique two bottle treatment. The two bottles work together to provide you with an effective algicide and a plant boost in one treatment, At the same time it rids cloudy water caused by algae blooms and helps prevent the return of the algae. - Eliminates all algae. - Harmless for fish and plants. - Eliminates the danger of choosing the wrong treatment. - Prevents algae returning and maintains plants. 20ml + 10ml treats 300 litres (65 gallons)