Bedford Ramblings
Steve Mills

Grey rocks hurt our fish?

Posted Monday, September 7, 2009, at 8:10 AM
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  • The problem with the lite colored stones are that they tend to allow for the production of moss and alge at a faster rate than a darker stone. If you have a good filteration system and or add water on a regular basis you will not have a problem. Both alge and moss have to have sunlight to grow and when you put a lite colored rock in or around your pond it allows the sunlight to reach a little deeper and reflect light a little more. With that being said the moss and alge will deplete oxygen from the water at a much faster rate than a pool without the moss or alge. In this case a small fountain will help.

    I how this is useful information.

    Thank you,


    -- Posted by gardendoc41 on Mon, Sep 7, 2009, at 10:11 AM
  • That certainly makes sense and anyone reading this blog since early spring knows that I fight battles with minute algae bloom that fogs the water until the water lilies have had a chance to spread.

    Our dry, hot weather and animals (both wild and domestic) leave me no alternative other than replenishing the water frequently.Guess that helps, but I still grow a healthy crop of moss in my stream area.

    My pond bottom is black but the edges have our natural limestone or other grey rock. I am not sure how to solve that, nor for aesthetics am I sure that I wan to, but cutting down the light might be a project for next year.

    I have two water falls built into the stream that comes from the filter, so I hope that provides enough oxygen. Have not had any fish kills, but I am starting to give them away to reduce the population. I am sure there comes a point when there are too many.

    -- Posted by stevemills on Mon, Sep 7, 2009, at 10:59 AM
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