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I wanted these to work and have to believe for some folks and some applications they must function as advertised. We have a small 300 gal decorative pond in the backyard hooked to a biological filter and with a few fish and a turtle. The water became green and cloudy in late summer so I ordered a pair of these bails. I tied one to the discharge tube from the filter as directed. A month later it had become separated so I put the other new one on the pipe in a similar fashion. Now 2 months later, I can see no difference in the water quality. We will be cleaning out the entire pond and filter in advance of winter and freezing temperatures. I see no reason to try these straw-filled bags again.
I used all three bales in my 11,000 gallon pool (in Hawaii). Even after more than 6 months, no effect at all that I can see. The water is still greenish enough that the 3 large red tilapia can't be seen more than a few inches down. The "load" on the pool is very low - we don't even feed the fish - they just eat bugs and algae - and we have other filtration and a 10,000 gallon per hour waterfall (actual volume over the fall) that keeps the water very aerated. Would have to say this is a bust for us. We are going to switch to UV light to kill the green algae, once and for all - still a natural method, but will be much more effective (per our neighbors' experience with their pool as well - they also tried barley straw first - same result).
I have a 1200 gal. filtered pond that gets about 8 hours of sunlight each day. Many plants, fish and frogs. Water is always clear, but I have a recurring string algae problem if I do not use Algae Fix every 2 weeks. I thought I would try these Barley Straw Bales instead of the Algae Fix. Three and a half weeks ago I put both bales in the lower portion of my water fall so water would constantly be flowing through the bales. The water is still clear, but the string algae is back and growing fast. I will take as much of the string algae out by hand that I can and give the barley a couple more weeks to work, but so far it does not seem to be having any affect on the string algae.
I give it two stars rather than none, because it did come packaged as described and on time. Now onto the nitty-gritty. The bottom line is that I'm not noticing ANY reduction in the algae in my pond. Perhaps this is because ducks use the pond too, perhaps it is too hot where I live, maybe I have the wrong type of algae. I have had the bale in the pond for nearly a month, located where the waterfall re-enters the pond, suspended to be at the surface so it gets sunlight, and used the whole bale even though my pond is well under 1000 gallons. According to everything I've read I'm using it correctly. I will leave it in for the rest of the summer, and edit my review if it improves, but at this point it looks as if I've wasted my money.
Absorbed the water fast and went down into the water in a few days. Set it out to dry as they said to when I put it back went under even faster. If it does not work if under the water but it does not stay above the water for more than a few days what good is it. A waste of my money.
We were disappointed with the product. We broke them down into smaller bundles for our bird bath and they really did not work very well. Still had to clean it from algae every other day as it turned green. Bath only held 1 gallon of water so the large bundle was way too big.....
I have only a 55 gallon pond, so it is difficult to tell how well this works. Water is clear enough. It was clear enough before I used it. I purchased as a preventative for cloudiness. One big problem I had is the tadpoles love it, the smaller ones fit in between the mesh that holds the straw together. Then the tadpoles grew there and couldn't get out. There they died and it created a bio bomb. I pulled it out and threw it away. This product may work better in bigger ponds without tadpoles.
Well I have used these before but they were smaller in size. Didn't work. Thought I'd give these a try as they were bigger. I made a small cage out of hardware cloth for it as it was going in a water tank the 2 mules use. Watch them dunk it trying to get at Barley. They left it only after they got bored. It say's to dry them out when they sink (get water logged) Did that. Been in the tank for more then a month, haven't seen any change in the water. So... I'll just leave it and eat the cost.