| Hi- Hope you enjoy your new pond, it sounds like it is quite established. I would suggest watching it over the next year, so you can find out what flora and fauna are in it and it's own pattern. Murky water especially at this time of year does mean that something is thriving in there--so your amphibians could be turning up the mud. And of course their offspring will need to eat too and green water has all the nutrients they need. I have a decent size pond and no filters. But there is a pattern to the clarity of the water depending upon the time of year (around June/July it goes very clear for awhile, then murky again and later clears when the weather goes cold.) It has never been so murky (except early in the first year before the plants were established) that it was unnattractive. Snails seem to clean up the pebbles in the beach and the birds come down to eat the snails. Really like watching grey wagtails coming down looking for snails. Also, you might have oxygenators that help keep the water clear, and you might not. So see what comes up. If you put in new plants that will also make the water green for while too. If you put chemicals in, you really won't know if that is mucking up your eco-system. So other than some barleystraw (organic if you don't buy the expensive pond-versions) I would just watch it and see what you discover. If it doesn't have large fish in it, and you want to put some in, I would also suggest waiting and seeing what your pond has. Who knows, you may have a thriving crested newt population and you don't know it yet! Similarly frogs and toads needs all the help they can get these days so a few ponds free of hungry fish can be important. Have to admit too, I don't get blanket weed anymore but I do kind of miss it---it was always a great excuse to get 'hands on' in the pond and see what was it. Great for the compost heap too. Have fun!! Chip | 
