TetraPond Sludge Reducer - Effective Water Treatment for Clean & Clear Pond Water (16736) | Ideal for Garden Ponds, Koi Ponds & Water Features

Does a decent job; great for maintenance. I would buy something a bit larger for problematic ponds.Easy to use. Does what it is suppose to.Easy to use and no smell. I used them and a barley bale in my small pond and what a differenceI didn't have high hopes. But it worked! I have an old pond that I inherited, with a lot of muck (rain runoff, etc) in the bottom that I was never able to completely get cleaned out. I have pollywogs and goldfish in there. I used 3 of the tabs in a 2 week time. I can now see all the way to the bottom even on a cloudy day. Really impressed.I have a pea soup 1200 gal pond for 5 years. I tried almost everything, nothing could clear this pea soup pond ! Then this year I tried the combination of Microbe lift algaecide for 3 weeks (to kill algae) then use this product for 1 month (to dissolve algae body). Now I can see the pebbles on the bottom of the pond! It's so wonderful!!!This works really well. I have a small goldfish pond therefore the build up comes quicker than a larger pond would. Works like a charm. Water stays clear and the filter lasts longer between cleaning.My 2 small ponds were very dirty. So I cleaned them out and started using this product and it works. Will continue to use this. The birds have come by and bath in the pond and they keep returning so it seems like it is safe for them.I have about a 1000 gallon pond out back with five very large koi and one stowaway red eared slider turtle (one day it just showed up in my pond and I didn't have the heart to remove it). I get these on my subscribe and save and they come on time every time. This is one of the easiest ways I have found to clear up your pond's water and clean out the sludge. I just drop all four tablets into my pond and not worry about it. Since I have started using these, I only have to clean out my pump filters about three times a year and my water is always clear.This Product really does everything it said it will do and much more, It's one of the best produced I ever used to keep my water clean in the pound over a month . It helps clean off and kill sludge and aliases off the walls in your pound. I would recommend it to everyone because it really does work really goodI've bought this due to sludge in the bottom of the pond. I've only used one dose of 4 discs so far but imagine I will need to do this once a week for a month to clean it all up. The price was reasonable and was delivered on time .. I have no idea yet how this product will work in the long run but have found that Tetra products are good and am hoping for the best.Lo use en un pequeño estanque artificial para tortugas (aprox 500 LT) y no pude ver un cambio real, además después de varios años de tenerlas saludables justo un par de semanas después un par de ellas tuvo una enfermedad en el caparazón.Sin ser posible de comprobar que haya sido este producto , el veterinario me preguntó si hubo algún cambio en el estanque. Decidí dejar de usar este producto.Easy to use. No visible changes to the pond.Dropped two into our pond and it has not help clear our pond out.