5 Myths About Algae Control

I have been raising Koi fish for over 20+ years in a 10,408 gallon pond in the worst possible algae weather condition known to pond owners. (I live in Maui were the temperature and sunlight is conducive to a 365 day algae growing season). I have heard every myth he spoke about and agree with everything he has said in this video. Thank you sir for letting people know the truth.

Through expensive trial and error I agree 100% with this video in all myths covered!! Listen to this man, he know what he is talking about.

I also put a crate in my bio filter with quilt batting soaked in peroxide and water to pick up fine algae cells .It does have to be cleaned often at first .I reuse the quilt batting over and over again .I just hose it off .Plus only feeding my fish 3 or 4 times a  week really helps

ee to many people over feed there fish .I have a koi pond and water is clear and I use nothing but lava rock filters ,no uv and I tried barley once but found all it does is break down to peroxide .It does not do anything but make a mess .I use crushed oyster shells to buffer my ph also .I use no chemicals in my pond .I don't believe in wasting my money .11 years of ponding and I have never had 1 fish die on me but have given lots of healthy babies away .My koi were a couple of inches long and now are over 2 ft long

Hi Kuhako...algae is always indicative of some degree of nutrients and they are usually high if algae is abundant. So I'd focus on that. Make sure fish aren't overloaded for a pond of it's size and that the filter is able to handle the capacity. I like to also use some beneficial bacteria in fish ponds because it's safe and addresses nutrients directly. Don't overfeed the fish and keep the bottom of the pond cleaned of organic build up of any kind such as dead plants, uneaten food, leaves,etc

I get string algae in my natural pool and I also get very high quality water. I vacuum the algae when required. I have a large lightly planted gravel biofilter. I don't use anything or add anything to maintain excellent swimming water. No UV either. Just one water pump. I've realised the pond world is the same as the swimming pool world in being able buy a ton of stuff to throw in the water.

My left ear loved this!

Just got into the pond business. Very useful knowledge. Thank you.

very underrated channel, thank you very much

Thank you for the info. Third year with 7,000 pond. Had a big problem with pea soup algae, we installed two 50 watt UV units no pea soup this year, now globs and globs of string or something algea. I guess we took to single cell competition away so the other one took center stage.

great advice . after a 2 yr battle with green water I added uv to my small 1000gal koi pond. plus increased size of bio / plants.and another filter. my water has been clear for 2 months now. I beleive its the uv but not positive..

Hi Folks...after checking into why some folks have had problems with the audio on this video, about all I could come up with was that when using my headphones the audio was really garbled...using the computers speakers it worked fine. I'm not an audio wizard so not sure why it's doing this but hopefully that tip will help...also the subtitles seem to be pretty accurate once activated as well.

Thanks a lot! This was clear, concise and very informative. Great job !

Algae in all forms is food to certain aquatic animals, especially fresh water clams and mussels. The work especially well under or near water flow/water falls. It is NOT a quick fix but over time, they fully clean the water. Of course, ammonia nitrogen is the main feed or algae and to eliminate that is to have aquatic plants both submersible and above water plants that will use the excess nitrogen produced by fish and or decaying organic matter. 

strange, the audio is working for me. I'm not sure what would be going on on your end.

Well done Alarmrat...all the things you did would be helpful for sure...but uv is often a game changer. Not always, but often enough. Thanks for sharing and enjoy your pond!

No probably not but it may have replaced it. In other words if the blanketweed or any weed or algae dies off, it's possible another could replace it. If you have uv going though you might want to trouble shoot that with the manufacturer because that should help with green water.

Hi Duane...I'm not sure I can add anything here that would help. You are probably right in that some coloration would block some light that could stimulate growth. Just not sure what that would be or how to use it in hydroponics since I haven't worked with that myself.

One point needs to be added to your discussion of salt and algae.  If the salt concentration approaches 15 parts per thousand  ( 1.5 percent )  any vascular ( ie submerged or decorative plants ) in your pond will likely die off.  Salt is much better as an aquatic herbicide and dispersing agent than it is for algae control.  

Location Southern Australia. Our backyard fishpond is approx 188 litres, rectangular and 25 cm deep. Goldfish population: 7 A year ago, the water was completely murky, with less than an inch of visibility. The water 6 months ago, I added a BioNatural product, which deals with Blanketweed/GreenWater/PondSludge. A few weeks ago, we have noted a sudden inundation of dark evergreen coloured string algae, very sticky stuff, blocking filters in less than a week. I had already increased my filter capacity, to 3 pumps, which all introduce aeration via venturis. I don't want to introduce any further chemicals, beyond the BioNatural product already used. One cannot manually scoop the string algae out, before it grows back fervently. A cctv recording shows the pond only gets 2 to 3 hours of direct sunlight, due to house and fence shielding the pond, on the East and West. 2 pumps have carbon foam filters, and one has 'bio-Noob pellets for assisting bacteria.