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Tetra Pond Block Controls Algae by by Tetra Pond

Best Seller
  • $13.99
  • (47%)
SKU: YT16735
UPC: 046798167358
MPN: 16735
  • $61.99
  • (55%)
SKU: YT16735N
UPC: 682157085057
MPN: 16735N
  • $211.99
  • (62%)
SKU: YT16310
UPC: 046798163107
MPN: 16310
  • $402.99
  • (62%)
SKU: YT16310N
UPC: 685167897436
MPN: 16310N

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Product Description

TetraPond Pond Blocks will help keep algae out of your pond! Pond Blocks are an easy, effective method of ornamental pond algae control. Simply drop into your pond regularly to restrict algae growth and help keep your water clear. Buy in bulk to save even more on your regular algae treatment!

  • Pond Blocks are a convenient way to control algae in ornamental fish ponds
  • Easy solution to keep nuisance algae growth under control
  • Clear cloudy water and remove algae from water features and fountains
  • 1 container contains 4 blocks - Net Weight 1 oz (28 g)

Keep pond algae under control and pond water clear! TetraPond Pond Blocks make effective algae control as simple as tossing in a block into your pond once a month. These pond blocks also help clear cloudy water and controls algae in ornamental fish ponds, water features and water fountains.

Note: NOT recommended for ponds or water gardens with live plants.

Directions: One block treats up to 250 gallons for 30 days. Use only as directed.

Active Ingredients:
Copper Sulfate Pentahydrate - 1.02%
Diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea] - 0.51%
Other Ingredients: 98.47%
Total: 100.00%

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Customer Reviews

Diana, Highland CA on 2018/08/05
As always outstanding!

As always outstanding! Arrives quickly, no problems and it is always exactly what I needed and I don't have to go searching all the pet stores, aquatics stores for what I need for my Koi pond! Thank you!

Shirley, Williamstown KY on 2016/10/27

This is 100% effective in the control of algae in our fish pond.

Eric, Lake Alfred FL on 2012/04/04
Useful anywhere algae in standing water is a problem

A co-worker with Koi ponds suggested that we use this product in greenhouse cooling pad systems for algae control. I've used this in 5 commercial greenhouses for the last 4 months and so far there is not any evidence of an algae problem anywhere. Other products either destroy the cardboard cooling pads or are very expensive to use or simply do not work. Using about 2 tablets per month per 100 gallons of water seems to do a great job at a very reasonable price. Tetra would do well to explore entry into the commercial greenhouse market.

Susan, Meridian MS on 2011/07/12
This stuff is the bomb!!

I have been fighting algae all summer and really do not like to put chemicals in my Koi/Goldfish pond...I put one in last week and water is crystal clear!!!

Warren, Freeburg IL on 2010/09/13
This works great

Our 200 gal. pond was filled with algae. We used the Tetra Pond Block and in 2-3 weeks the algae was dead and all we had to do was clean the pump filter every day for a week and now the water is clear and we can see the fish again.