NickG83 Posted April 27, 2021 Share Posted April 27, 2021 Hey all, I’ve recently (about 3 weeks ago) set up this above ground mini pond with bog filter. Water is pumped out from pond, into the gravel/plant filled bog which the water flows up through, then returns to the pond. The pump is inside a tub thing with sponge over to make it safe for small fish. All seems good, apart from all those bubbles from the air stone that don’t seem to be popping very quickly... why might this be? I’ve tested the water and it seems fine. Possibly showing a little ammonia (but always hard to tell with the colours). If there is ammonia though, it’s only a very small amount... Also if it is ammonia, where has it come from? No fish in there as yet... There’s a lily in the bottom which hasn’t started growing yet, and a few oxygenating plants also in the bottom, and a bit of water cress floating, plus obviously the bog plants. Really though it’s just these bubbles that concern me... should I be concerned? If so, what could be causing them? And what should I do to rectify them? Fish probs won’t be going in for a couple of months when the weather warms up. Thanks for any info, Nick. 2 Link to comment Share on other sites More sharing options...
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