A build-up of debris, too many fish, not enough aquatic plants, excessive exposure to sunlight, excess nutrients, trace minerals, and insufficient filtration will lead to green water. It’s just part of the Natural cycle. Mother Nature goes through it and so do we! In the late spring, as your “eco-system” is starting up, this is the opportunistic time for Green Water algae to claim its stake in your pond! Again, Not all ponds are the same, some Green Water algae goes away naturally after 2-3 weeks if your system is in balance, Nitrates are in the correct range and you have proper plant amounts in the pond. But not always the case! These are avenues we recommend to our customers to help eliminate or avoid these algae blooms.
First, Observe the amount of sunlight your pond is receiving, if more that 6 hours a day, try and offer the pond 2/3rd’s coverage with waterlilies, floating hyacinths, water lettuce, marginal plants, etc. NEW! GreenClean, a granular algaecide… don’t be alarmed by the word algaecide. It is a non-copper based algaecide. It works on contact! GreenClean works through oxidation with provides for immediate control of algae. Dead matter floats to the surface where you can use your skimmer net to remove the debris. This product poses no threat to the pond life or plants.
If you need that extra “umph”, especially in the spring and fall when plants are still not as “mature” and not covering as well as they did during the summer, then add a Liquid Water Clarifier to your pond. This is a flocculent that binds these suspended algae particles and then the skimmer will collect these particles on your filtration media, where you can then rinse the pads free. It is important to remove these particles, wheather its algae particles, decayed plant particles, dirt, debris etc., otherwise it will decay and therefore result in oxygen deficiency and poor water quality. If there continues to remain a consistent problem with Green Water, then we recommend a UV light Sterilizer.
A UV (Ultra-Violet) sterilizer will kill the algae cell walls as it passes over the light. The dead algae are then collected in your Biofilter filtration media where it can be cleaned from. Another benefit from a UV Sterilizer is that it kills parasites as well! UV Clarifiers do the same in killing the algae spores but do not work against parasites.
A skimmer is good to have as it continually “sweeps” debris from your pond before it has a chance to settle on the bottom of the pond. A biological filter or waterfall will help oxygenate your water and process toxins in your water produced from fish.
To prevent String Algae and Green Water Algae, see our ALGAE TREATMENTS in our Pond Store! Although I have Barley in all our ponds, a good .3% salt in all our ponds and GreenClean used as needed, I also dose the ponds every 3-4 weeks with Algaefix and Ecofix.
Along with my Beneficial Bacteria by my side, the Bacta-Pur Klear, Nutripack and Sludgebusters,”The dream team”, Our water quality is Clear, our ecosystems are Healthy and our fish are Happy!