Re: [timmychan] mosquitoes - how to rid them??
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If your pond is not stagnant, you shouldn't have mosquitos. If there is a current in the water, I believe mosquito's won't survive. Besides, the fish would eat any larvae in the pond. What you likely have is midge.... they're a small insect, always swarming around the pond, sometimes in large numbers. They're harmless and won't bite you, and their larvae is the bloodworms commonly found in the filter chambers. These also make good food for the fish.
Re: [KevKoi] mosquitoes - how to rid them??
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Dear KevKoi
sorry, not in the pond but in the covered filter chambers. water is running but lots of larvae and mosquitoes hiding in there. hundreds of newly emerged mosquitoes too
Re: [timmychan] mosquitoes - how to rid them??
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use UV light .. very effective .. u can see a layar of mosquitoes on the surface of your filter. I personally did not cover the filter so can attract mosquitoes to go and lay egg .. then the UV light will just kill them. Help to reduce the mosquitoes arond your house area as well. I still remember the builder of the ponds complaint about mosquitoes problem when they dig the ponds .. its like if you stay out for 5 minutes you will sure get bite from them. With the UV on ... this problem gone ... a lot less mosquitoes now .
I think I killed more than 5,000+ mosquitoes, or more ?
Re: [cwloo] mosquitoes - how to rid them??
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cwloo,
When you say you leave your lid off the filter, isn't it then exposed to direct sun light ?. If this is the case how do you keep your water params down ?.
Re: [SMW1] mosquitoes - how to rid them??
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yes, I didn't cover the filter. We hv nets covering the whole pond & filter to avoid direct sun light. Water para is still quite ok Nitrite 0 Nitrate 25mg (still very hard to bring down, even with tt, but not a big problem) PH 7.2
Re: [cwloo] mosquitoes - how to rid them??
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Hi Cwloo...I thought UV light is harmful to human body?!! I heard from someone once put in this forum that UV light can also cause blindness if someone stare at the light even for a short moment. How do you keep you UV light to kill the mosquitoes and their eggs? Do you meant you keep the UV light on without cover? Isn't that a bit dangerious if someone (ie a child) go to touch it or look at it? Please explain. Thanks.
Re: [cwloo] mosquitoes - how to rid them??
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My UV light is in one chamber and the other two are full of mosquitoes and larvae. I do get mosquitoes and larvae in the UV light chamber too. don't know why. they don't seems to die. also found a few lizards within the 4 chambers. they seems to be able to live there comfortable.
Re: [DANNY] mosquitoes - how to rid them??
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no , the UV light is cover, it's only the filter is not cover.. I put the UV light inside a box which face down to the filter. Thus the blue light will attract mosquitoes to come at night and get kills later.
The UV won't cause blindness if u only look at it for a short moment, by short I mean less than few seconds. If you scare that the kids go around the UV light you can put a timmer on it and only swtich it on at night.
Re: [timmychan] mosquitoes - how to rid them??
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My UV light is in one chamber and the other two are full of mosquitoes and larvae. I do get mosquitoes and larvae in the UV light chamber too. don't know why. they don't seems to die. also found a few lizards within the 4 chambers. they seems to be able to live there comfortable.
This could mean that your UV light is near the end of lifespan. Remember if you switch on the UV for 24hrs a day it lifespan is only 6 months. Try to change the UV bulb and check the effect, dont forget to ask for UV light that kill gems .. as some of the shop sell the wrong one to you.
Re: [cwloo] mosquitoes - how to rid them??
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Hi all!
My opinion, i don't like to use UV, cause it's harmful to every living thing! and we have to use it very very carefully. For my choice, i won't use a UV unless there are no more chances left. I do have a UV light too, last time i use it for 24/7! everyday! although is not a really big unit(not sure the size) but it really cost alot buying that unit and for the electricity bill! and UV causes alot of problems too! like always getting brown color substance! i think it might be the "dead body" of the algea!
Thinking of Mosquitoes surviving, in the filter chambers, in the pond...is this possible? I don't think its possible is the pond is alwasy moving, water in the filter chamber is always flowing. and are they really mosquito larvers? or are they those red worms?
Re: [newgen] mosquitoes - how to rid them??
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John,
If you DIY your own UV light it is not that expensive.. Just buy the light bulb, normal light transformer or those fluorescent light bulb kits and you are ready to go.
Yes, it's really larvers inside the filters as you can see them "swim" around the surface of the filters. I'll get some shots when I got myself a digital camera.
Re: [timmychan] mosquitoes - how to rid them??
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I found in my high mosquito area...that to get rid of larva, don't have as many adults. My answer was bats. Bats eat thousands of them a night. So Has anyone tryed putting up bat boxes on their properties? Any little bit helps and I don't get bit by the adults near as much as I used to!
Re: [D2070] mosquitoes - how to rid them??
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In my opinion, not a good idea to have bats around the house let alone near the koi pond!
Bat bites could cause rabiesa as well as a host of other diseases. And yes, bat droppings would created a lot of mess and most likely toxic to kois!
Better not to introduce bats to the neighbourhood as it would cause a nuisance as well. There are other ways to get rid of mozzies. I have gardeb spiders to do the job and you can also plant mosquito repellent plants near your pond.
Re: [johnson lee] mosquitoes - how to rid them??
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Spiders seems to be doing quite a good job at place. I you notice I did complain about mosquito problem sometime ago. I was told not to disturb them spiders and it seems to working. Much less not entirely wipe out.
Re: [andyng] mosquitoes - how to rid them??
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spiders are good but will not be able to totally get rid of the mosquitos. just to re-cap: 1)My pond no mosquitoes or larvae 2)Mosquitoes and larvae in filter chambers 3)Lots of newly emerged mosquitoes in chambers - can't fly properly yet, wings not steady 4)Has UV light (20 watts) in filter chambers 5)Water flowing in pond and chambers 6)Have applied "abate" (mosquitoe larvae) insecticide into pond but can only last a week or so. After changing / topping up water for a week or so, the mosquitoes and larvae are back. 7)I believe "dimilin" will have the same effect as in "abate" in (6) above??? 8)Have asked around aquirium, fish farm and hardware shop in Kuala Lumpur but can't find "dimilin". Anyone can recommend where to find?? 8)Malaysia is a hot tropical country and plenty of mosquitoes. Any good long term suggestion to get rid of the mosquitoes and larvae??
Re: [timmychan] mosquitoes - how to rid them??
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I used Dimilin to good effect but it has to be in 2 to 3 week cycles in order to kill the emerging eggs as well. The treatment will also kill any anchor worms. Dimilin basically prevent the moulting cycle of crustaceans like invertibrates.
You can buy dimilin from Cheras Aquarium , Jln Ulu Pudu(further up from jusco maluri and landmark is the Gerakan HQ Building) at Rm 1.20 per gram. Dosinage is ~ 1 gram per 1000 gal.
Re: [timmychan] mosquitoes - how to rid them??
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Why don't you guys prevent them to lay eggs and multiply in you ponds, I myself use the preventive strike, I use 10-20 "Leuciscus Idus" (I am dutch don't know how you call this in english) Those are school fish, pretty, fast, and when musquito-proof they love them and can live weeks with only the natural food supplie -> midge-egs/larves. Another advantage is when they are big enough that they are also heron-proof
Re: [Ike] mosquitoes - how to rid them??
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Can't do that because they will only last about 2 seconds in my pond. Other than Koi, I have lots of Malaysian river fish like red kelah, tapah, temoleh, sebarau, arowana, kalui, jelawat, patin, etc. They are predatory fish and love small fishes.
Re: [timmychan] mosquitoes - how to rid them??
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I thought these are water mosquitos which do not bite. Most filter tanks have them which are being ignored as they are not harmful to human. Correct me if I am wrong.
In case yours are those harmful mosquitos, why don't try cover your filter tank with those fine aluminium net which only cost S$1.00 per ft run of 1 metre wide. I have tried that and is found to be effective but I didn't put it now as I think they are harmless water mosquitos .
Best regards
"Talk sense to a fool and he calls you foolish. - Euripides"
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And yes, bat droppings would created a lot of mess and most likely toxic to kois! 
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