Mid-winter water test

[anthony21078]

I haven't done much to my pond over the past 3 months with the cold weather except adding some aquascape beneficial bacteria every week. When we get a lot of rain the pond has a tendency to fill up too high so I'll throw a pump in there and take out some water. I haven't added water myself with the exception of rain. I've left my waterfall and Fountain running non-stop and the pond is clear with visible bacterial growth on the liner.

Today's water test
PH 7.8
AMN .5
NI 0
NA 0

All 23 of my goldfish are still live and well. I don't like the high ammonia so I'm doing a water change now. But I'm curious as to why the nitrates have dropped to zero when several months ago they were between 20 and 40? Anything to worry about?

 

[MIKES KOI]

nothing to worry about. its good.....my guess is thats the filter is now cycling .. remember most city water contains ammonia . just a word of warning on dropping water in a pond with a liner, if its is dropped low .. and you get a fierce rain storm it can get behind the liner and cause a blow out of a wall. hope this helps mike