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Coldwater Algae eaters?


maoripho3nix

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Hi all,

 

Been many years since I've posted on here. These days I am down to an outdoor aquaponics tank. Roughly 400-500 litres.

Currently the grow bed has started sprouting lots of water cress.

The tank only houses 4/5 Bronze comets which are upto about 10cms now.

With this warm weather and plenty of sun here in Gisborne, the tank has taken a turn and gone cloudy green and growing algae :(

I need recommendations on what I can do to hopefully eliminate the algae or at least minimise it.

Being an aquaponics tank I can't use any treatments that I know of without harming the bacteria growing in the grow bed.

So I am on the lookout for specific critters and their names?

 

Thanks all :)

 

 

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Snails will eat any slimy algae that is growing on stuff in the tank, but won't help with the green water.  Daphnia eat the microalgae that makes the water green, but I'd imagine they would last long around the goldfish.  If it's a glass tank, you could paint or cover up the sides to reduce the sunlight entering the tank (I assume the top is shaded by the grow bed). 

Note that aquatic snails can harbour parasites that can infect humans such as liver flukes and these can be picked up from eating raw watercress; the risk is very small but if you do add snails, don't take wild ones from streams accessible to livestock.

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  • 4 years later...

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