Scottish Rock Garden Club Forum
General Subjects => General Forum => Topic started by: brianw on April 02, 2023, 08:27:23 PM
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Hi. Silly question time. I have been reading up in general about ponds; healthy and otherwise, and keep coming across the term EI, but nowhere can I find what EI is or stands for. Can someone please explain.
Brian, SE UK
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EI stands for Estimative Index ! ( Well quite!!) Something to do with the nutrient balance in the water.
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Thank you Maggie. Now I look a bit further it seems to be a sort of scientific Guestimate. Makes me wonder how we all kept Goldfish from the fair for so many years in the distant past, and then tropical fish later. I can't keep fish on my outside pond(s) here; too many birds around looking for food; although the Mallards that pestered us when we first had this pond seem to have gone. Only wish I could say the same about the deer etc. that decapitate or debark so many plants.
Brian