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- Sat Apr 01, 2006 6:11 pm
- Forum: Historic posts read only
- Topic: Are vegetable filters effective??
- Replies: 9
- Views: 22085
Are vegetable filters effective??
I went to the Sparsholt Training Colledge open day last weekend. A very good day out too. One of their fish experts when talking about nitrates and their experiments and vast knowledge obtained said that by calculation vegetable filters unless enormous in size (over 100 times the area of the pond fo...