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Originally Posted by MrsCaz I know you can get blanket weed stuff for fish ponds, is this safe to use in a wildlife pond though? I've got loads of nymphs and things in the water and I don't want to kill them. What's the best thing to do? Thanks in advance.  |
Any of the chemical solutions will only be a temporary measure at best. The blanket weed will return because there's more waste than the natural bacteria can deal with. It's a pretty complex cycle which is:
Food > Animals > waste (ammonia) > bacteria > nitrites > bacteria > nitrates
Plants will absorb the nitrates.
If there isn't enough of the right kinds of bacteria then algae in various forms will grow. The chemicals that kill off the blanket actually make the problem worse because it just generates more waste encouraging more algae.
Do a search on google for pond nitrate cycle and you'll find lots of info about what you could try based on the size of your pond, etc.