I also do not profess to be any kind of expert, but can echo everything Ken has said, but for good fish photography, patience, a steady hand (or tripod) and lots of 'poor' shots are needed.
regards, tubemate apk
stream videos
Are you sure about the GH and KH readings? I know London has hard to very hard water but it also has high KH. And 14 to 28 is a huge range, you need to pin it down more accurately. Have you looked on your water company's website to see what level they give for hardness? They are unlikely to give...