A Community and Forum For Aquaponic Gardeners

Very green water

I am just starting out with 2 - 1000 gallon tanks and 2 - 75" x 8" grow beds. We got our fish Thursday and have not yet put the rafts in the grow bed. Our water is now green. Is it because the sun hits the water in the grow beds and do I need to worry about that? The rafts are arriving today so I am hoping shading the water will fix the problem. Does anyone know?

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Permalink Reply by Ellen Roelofs on January 23, 2012 at 12:06pm

For green water I might try releasing daphnia into the raft tanks (at the head). They filter the microscopic "green water" out as food and multiply rapidly. I'm not familiar with the details of the UVI filter system, so they might be a problem in there, but they make fantastic fish food!

There are a few different species of daphnia of different sizes and temperature tolerances - 'worth checking into.

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Permalink Reply by Benicia Bendele on January 23, 2012 at 12:47pm

Will they eat the roots of the plants?

Chip Pilkington said:

My recommendation for plecos was primarily for surface algae, as it also occurs with any amount of sunlight. I think they are a great addition to the tank. Sorry, I did not mean to suggest them as a cure for green water.