Hey guys I know I am not a regular on here at all, but I wanted to tap into your collective knowledge and brain power to help me solve an issue. My brother in law built a pond in the backyard a few years ago. It is a bean shape about 6' x 12' and then about 10' deep. He has great filtration and his water quality is superb, but he gets some really crazy algae bloom. Some days you can even see 2 feet in the water! Any help would be sweet! he is using a UV filter but I dont know what model or brand... i will find out!
Pond is green
- Thread starter patmanbbe
- Start date
10' deep? wow, pretty deep pond at those dimensions. There are a list of things he could check, try or change. Can you give more details about the pond. A photo would be pretty helpful. Kind of need to know a bit more like, filter system (pump size, drain/s and skimmer locations), if there is a water fall, are there plants in the pond, what are the inhabitants (koi?) and what size and how many, is the blooms at certain times of the year or more random (very important question), what type of pond (rubber liner, concrete, fiberglass...), is it a bare bottom pond or is it sand or gravel bottom, how much and how often does he feed the inhabitants, What size UV and when was the bulb changed last and does it run 24/7, what climate zone is it in (I presume S CA) and I could go on and on but that should get us started.
I will be over there later today and I will get some info on the setup the filter is homemade. Its a 3' tall x4'x4' box filtering bottom to top through lavarock then gravity feeding to a waterfall that drops 2' into the pond. He has a large pump pulling from a center drain ans a skimmer. I will get exact models and flow volume on that as well as the UV filter info too. He has several Koi I will also get a count and size for those. Thanks man!
Does he have any live plants? Lily pads work very well with this Kind of situation. Does alot of light shine on it a day?
Barley straw will knock back a green water bloom. For long-term control, treat the cause- a combination of lots of available nutrients and light. Plants help provide shade and take up excess nutrients. If the pond receives surface runoff, it's a good idea to divert that runoff around the pond or into a nearby bog garden. Excess nutrients can also be caused by over-feeding or over-stocking.
There are currently no plants and it gets direct sunlight all day. It is not over stocked at all, I wasn't able to go by to get the details on the equipment. I hope to get it up on here soon to help get more answers. Thanks guys.
Ok, I was over there last night. I took some pics of the whole setup. I will have them up on here later today. I worked the graveyard shift at work and need some sleep. I will have them up later today. Thanks.