- Joined
- Jul 19, 2013
- Messages
- 92
- Reaction score
- 84
- Location
- Bergisch Gladbach, Germany
- Hardiness Zone
- zone 8a/b
- Country
Hi,
Well, we are British Expats, living in Cologne, Germany. I am a pond "virgin" as such!
We have just bought a lovely house, with a great garden and a pond. First project was to fence of the little pond, to keep our two dogs out of it!
So, the previous elderly couple have set up this pond. I don't think it has a bio filter, or anything at all. Just a waterfall. We measured it and it has approximately 700-800ltrs of water. It is caked in algae. We have been removing the algae as instructed, by the previous owners, with a pole with a deep fat fryer cage/net7seive thing strapped onto it!....not good, seems to do a really good job of wafting the crap in the pond around a lot, so not sure if this is really working!
Despite the bad condition of the pond, it has so much life, we have whilst renovating it over the summer, had Mayflies, dragon flies, newts (palmate) (spawned, grew and then just moved out in the last couple of weeks), no frogs I can see, but we have got 2 water lillies, and some small brown grey fish - they are about the size of my little finger, I think we have 10-15 of them in there. Have nicknamed them the fish-fingers....not creative, I know!! No idea what these fish are, but they have survived a very harsh frozen winter.
It seems that we have been plagued with filamentous algae - some of it looks quite fibrous, like strands of hair and other bits of it seem to be like bubbly green vomit in the top and bottom of the pond.... yummy!
Reading around, I understand that a few things have been going wrong:
1: The pond is always filled from a tap. (I am buying a big waterbutt, and will be standing some tap water in it for a few days to let the chlorine etc waft away). Sadly, we have a heatwave and the pond dries out quickly, as it is not very deep, more wide and shallow.
2: A lot of foliage appears to have fallen in and died.
3: There seems to be a significant amount of pond sludge in the pond too.
4: Just pulling out the algae is causing it to spore, enhancing the problem.
5: The pond is not in a shady place, therefore it is permanently exposed to the sunlight.
So, it looks like we have an ammonia overload. To try to curb slightly the algae, I have used a tetra pond algofin, which has made a slight dent, and really it was just to start the battle.
I am waiting for the delivery of:
1: Proper net for hoicking stuff out of the pond, eg leaves and crap. Currently doing this daily, to remove any decaying stuff, so the fish don't get drowned in the poisonous gasses.
2: http://www.amazon.de/dp/B007QS55X6/ref=pe_386171_37038021_pe_217221_31005211_3p_M3T1_dp_2 - bio-stabil - which includes all the good bacteria. (The quick english translation of this: "Holzum Organic Stable for 30,000 liters of pond water Holzum Bio is a stable quality activated clay, which provides your pond with important minerals. It contains trockengefrostete bacteria that break down pond sludge and support the bio-climate of your pond. Holzum Organic Stable ensures durable pond residents with bright colors. The pond water is very clear, and even the slightest turbidity and water stains are bound and removed by the pond filter. Thread and suspended algae (green water) to get through Holzum Organic Stable no development opportunity. Dust particles on plants and the silt layer in your pond will gradually disappear. Together with the Holzum filamentous algae stop Holzum Organic Stable is the perfect solution to prevent algae in your pond."
3: http://www.amazon.de/dp/B003UZV61Y/ref=pe_386171_37038021_pe_217221_31005211_3p_M3T1_dp_1 - filamentous algae killer - Holzum filamentous algae stop - fast action - clear pond water - safe for fish and plants - highly effective Holzum filamentous algae stop is a unique product on the basis of enzymes and bacteria. Filamentous algae can develop explosively by increased sunlight and grow over the pond. By the enzymatic action of filamentous algae Holzum stop the algae, the nutrients are removed. Shortly after application, the dead algae can be abgekeschert with a fine mesh net. Remains of algae are decomposed by bacteria and disposed of in the filter. Holzum filamentous algae stop is harmless to fish and plants. In combination with organic Holzum Stable is our thread algae stop is the perfect solution to prevent algae in your pond.
4: A pump: http://www.pontec.com/site/?sid=51&cid=103 It is a 3000l capacity, which I think should be enough to counter for 700l plus our 10-15 fish-fingers.... I know that reviews are a bit mixed, but it is a starting point, and I am expecting initially to have to clean it frequently, due to the amount of crap in the pond.... If it looks like it is making a dent in the situation in combination with the bacteria and enzymes, then hopefully I can convince hubby to invest in a better quality system...
Next plans are a bit dependent on the weather. We have quite a snowy winter here, and the pond will freeze over quite a lot, so expecting to remove the filter and overwinter it in a bucket of water. We will continue using the bacteria into the pond, throughout the winter as much as it possible.
Interested in introducing some floating vegetation to give some more cover for the water and also some water snails (more for interest, rather than expecting them to deal with the algae... Wondering what types of vegetation would be good and snails. Also how do I overwinter it? or is it worth waiting until next spring now, before introducing anything like this? We can keep it in the outhouse, which has a big glass door, so will have lots of access to sunlight.... Also, how many snails and how much vegetation is good!
Longer term I guess the possible options are to excavate the pond, to make it deeper. But that will be in a few years. Also, creating some sort of shade, but really not got any inspiration on that!!
Also, one last thing, the owners don't appear to have ever fed the fish...should I feed them? Used to coldwater simple aquarium fish and feeding them, but not sure what to do with the pond? It seems to have plenty of insects, and the fish haven't been fed for just under a year now(house was empty), seem pretty lively and well, fishy...
Sorry, a mix of stupid questions here!!! We are needing to firefight, to get the chemical composition right, but I am trying to learn as much as I can, asap about ponds....
If anyone can point me to some good resources, ideas and advice, I would be deeply appreciative, and no doubt so will the pond inhabitants too!!!
Thanks,
WT
Well, we are British Expats, living in Cologne, Germany. I am a pond "virgin" as such!
We have just bought a lovely house, with a great garden and a pond. First project was to fence of the little pond, to keep our two dogs out of it!
So, the previous elderly couple have set up this pond. I don't think it has a bio filter, or anything at all. Just a waterfall. We measured it and it has approximately 700-800ltrs of water. It is caked in algae. We have been removing the algae as instructed, by the previous owners, with a pole with a deep fat fryer cage/net7seive thing strapped onto it!....not good, seems to do a really good job of wafting the crap in the pond around a lot, so not sure if this is really working!
Despite the bad condition of the pond, it has so much life, we have whilst renovating it over the summer, had Mayflies, dragon flies, newts (palmate) (spawned, grew and then just moved out in the last couple of weeks), no frogs I can see, but we have got 2 water lillies, and some small brown grey fish - they are about the size of my little finger, I think we have 10-15 of them in there. Have nicknamed them the fish-fingers....not creative, I know!! No idea what these fish are, but they have survived a very harsh frozen winter.
It seems that we have been plagued with filamentous algae - some of it looks quite fibrous, like strands of hair and other bits of it seem to be like bubbly green vomit in the top and bottom of the pond.... yummy!
Reading around, I understand that a few things have been going wrong:
1: The pond is always filled from a tap. (I am buying a big waterbutt, and will be standing some tap water in it for a few days to let the chlorine etc waft away). Sadly, we have a heatwave and the pond dries out quickly, as it is not very deep, more wide and shallow.
2: A lot of foliage appears to have fallen in and died.
3: There seems to be a significant amount of pond sludge in the pond too.
4: Just pulling out the algae is causing it to spore, enhancing the problem.
5: The pond is not in a shady place, therefore it is permanently exposed to the sunlight.
So, it looks like we have an ammonia overload. To try to curb slightly the algae, I have used a tetra pond algofin, which has made a slight dent, and really it was just to start the battle.
I am waiting for the delivery of:
1: Proper net for hoicking stuff out of the pond, eg leaves and crap. Currently doing this daily, to remove any decaying stuff, so the fish don't get drowned in the poisonous gasses.
2: http://www.amazon.de/dp/B007QS55X6/ref=pe_386171_37038021_pe_217221_31005211_3p_M3T1_dp_2 - bio-stabil - which includes all the good bacteria. (The quick english translation of this: "Holzum Organic Stable for 30,000 liters of pond water Holzum Bio is a stable quality activated clay, which provides your pond with important minerals. It contains trockengefrostete bacteria that break down pond sludge and support the bio-climate of your pond. Holzum Organic Stable ensures durable pond residents with bright colors. The pond water is very clear, and even the slightest turbidity and water stains are bound and removed by the pond filter. Thread and suspended algae (green water) to get through Holzum Organic Stable no development opportunity. Dust particles on plants and the silt layer in your pond will gradually disappear. Together with the Holzum filamentous algae stop Holzum Organic Stable is the perfect solution to prevent algae in your pond."
3: http://www.amazon.de/dp/B003UZV61Y/ref=pe_386171_37038021_pe_217221_31005211_3p_M3T1_dp_1 - filamentous algae killer - Holzum filamentous algae stop - fast action - clear pond water - safe for fish and plants - highly effective Holzum filamentous algae stop is a unique product on the basis of enzymes and bacteria. Filamentous algae can develop explosively by increased sunlight and grow over the pond. By the enzymatic action of filamentous algae Holzum stop the algae, the nutrients are removed. Shortly after application, the dead algae can be abgekeschert with a fine mesh net. Remains of algae are decomposed by bacteria and disposed of in the filter. Holzum filamentous algae stop is harmless to fish and plants. In combination with organic Holzum Stable is our thread algae stop is the perfect solution to prevent algae in your pond.
4: A pump: http://www.pontec.com/site/?sid=51&cid=103 It is a 3000l capacity, which I think should be enough to counter for 700l plus our 10-15 fish-fingers.... I know that reviews are a bit mixed, but it is a starting point, and I am expecting initially to have to clean it frequently, due to the amount of crap in the pond.... If it looks like it is making a dent in the situation in combination with the bacteria and enzymes, then hopefully I can convince hubby to invest in a better quality system...
Next plans are a bit dependent on the weather. We have quite a snowy winter here, and the pond will freeze over quite a lot, so expecting to remove the filter and overwinter it in a bucket of water. We will continue using the bacteria into the pond, throughout the winter as much as it possible.
Interested in introducing some floating vegetation to give some more cover for the water and also some water snails (more for interest, rather than expecting them to deal with the algae... Wondering what types of vegetation would be good and snails. Also how do I overwinter it? or is it worth waiting until next spring now, before introducing anything like this? We can keep it in the outhouse, which has a big glass door, so will have lots of access to sunlight.... Also, how many snails and how much vegetation is good!
Longer term I guess the possible options are to excavate the pond, to make it deeper. But that will be in a few years. Also, creating some sort of shade, but really not got any inspiration on that!!
Also, one last thing, the owners don't appear to have ever fed the fish...should I feed them? Used to coldwater simple aquarium fish and feeding them, but not sure what to do with the pond? It seems to have plenty of insects, and the fish haven't been fed for just under a year now(house was empty), seem pretty lively and well, fishy...
Sorry, a mix of stupid questions here!!! We are needing to firefight, to get the chemical composition right, but I am trying to learn as much as I can, asap about ponds....
If anyone can point me to some good resources, ideas and advice, I would be deeply appreciative, and no doubt so will the pond inhabitants too!!!
Thanks,
WT