Re: Aquatic Plants Digest V1 #14


>I suspect the high phosphate reading has another source.  Have you 
>added any potted plants without removing the rockwool?  Any new 
>water conditioners? pH adjustors? fertilizers? In my experience, 
>when phosphate goes up in the absence of high nitrate readings, it 
>is usually being added to the system inadvertently.

I had no idea that rockwool would add phosphate to the water. I am glad that
you mentioned this, there are times when I get plants and just stick the
little pot rockwool and all in the substrate. In fact I have a couple in the
tank now. This could be a contributing factor to my small alage outbreak.

Thanks for bring this to my (our) attention.

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        | Allen Sandifer              |                     
        | ibi007 at lion_connect.more.net|                                
        | ST.Louis, MO                |
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