API Pond Microbial Algae Clean API Pond Microbial Algae Clean is a biological pond treatment designed to help control green water algae while also helping break down organic sludge and debris. It’s a great option when your pond water itself has turned green or cloudy from suspended algae, rather than when you’re dealing with long strands of string algae attached to rocks, plants or pond liner. Why Use Microbial Algae Clean? Helps control green water algae Uses a biological bacterial approach Helps break down organic sludge and debris Can help reduce unpleasant pond odours Supports a cleaner pond environment Suitable for ornamental ponds containing fish and plants when used as directed How to Use Shake well before use. Dose approximately: 10mL per 380L of pond water For an active green-water problem: Dose twice per week for the first two weeks. For ongoing maintenance: Dose once per week. Always calculate your approximate pond volume before dosing and follow the instructions on the product label. Green Water vs String Algae Microbial Algae Clean is primarily designed for green water — when microscopic algae is suspended throughout the water and makes the whole pond look green. If you have long strands of algae attached to rocks, liner or waterfalls, we'd look at a different algae-control option such as API Pond Algaefix. Simply Fish Recommends Before treating the pond, remove as much obvious organic waste as you can. Leaves, dead plant material, uneaten food and thick sludge all contribute nutrients that algae can use. We'd also check that your pond pump and filtration are working properly rather than relying on treatment alone. For persistent green-water problems, a Pond One ClearTec UV-C Clarifier can also be an excellent long-term solution. FAQ What type of algae does Microbial Algae Clean treat?It is primarily designed to help control suspended green-water algae. Will it treat string algae?It isn't our first choice for string or hair algae. API Pond Algaefix is better suited to those types of algae. How much do I use?Approximately 10mL per 380L of pond water per treatment. How often should I use it?Twice weekly for the first two weeks, then once weekly for ongoing maintenance. Is it safe for fish and plants?It is designed for ornamental ponds containing fish and plants when used according to the label directions. Does it replace a pond filter or UV?No. Good filtration, circulation and maintenance remain important for long-term algae control. Check out our spring pond care blog post for some helpful tips to get your pond ready for the warmer season!
