Problem with nature pond

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walker26
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Problem with nature pond

Post by walker26 »

I built a nature pond a couple of months ago using a flexible liner. All was ok for 2 or 3 weeks but then the water went a bit green, which I was expecting and then the liner and rocks started to get covered in something red. I’d find a few dead tadpoles on the surface each day, the oxygenating plants started dying and surface plants aren’t as healthy as they should be.

I changed 50% of the water with dechlorinator and added some barley extract, EA Pure Pond and some activated carbon. Tadpoles have stopped dying and the water has got a bit clearer but I still have the red coating on everything and the pond weed (Spiked Water Milfoil and Elodea Densa) is still dying. Could someone please tell me what the red stuff is as I think this is what’s killing the pond weed. All advice appreciated. Thanks.
340 litre Aqua Oak
Fluval FX4
Fluval Aquasky 2.0
Hydor 300W Ext’ Heater
6 x Angels
1 Pair of Rams
20 x Cardinal Tetras
9 x Sterbai Corys
8 x Ottocinclus

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fr499y
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Re: Problem with nature pond

Post by fr499y »

You need more oxygen in the pond. Pick up a cheap solar powered fountain as this will help massively.

Red in the pond is usually Euglena, a type of algae. It will absorb the O2 in the water, and stink. Remove as much as you can and increase the oxygen level as much as you can. Even a battery powered airpump and airstone will do the job

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black ghost
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Re: Problem with nature pond

Post by black ghost »

Euglena is a genus of flagellated protozoans, that tend to cause a red tint to the water or in larger numbers a red surface scum. Red growth on submerged surfaces is likely to be algae. Same solution though. Wipe as much of it off and out as you feasibly can, and increase oxygenation, and/or plant growth.

walker26
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Re: Problem with nature pond

Post by walker26 »

That’s great info guys, thanks. I was contemplating buying a solar aerator but didn’t want to waste more money without some better advice, you’ve confirmed my suspicions. I now need to justify the expense to my wife or hide it, along with the new CO2 system for the aquarium. :s
340 litre Aqua Oak
Fluval FX4
Fluval Aquasky 2.0
Hydor 300W Ext’ Heater
6 x Angels
1 Pair of Rams
20 x Cardinal Tetras
9 x Sterbai Corys
8 x Ottocinclus

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