TetraPond Algae Control Block - 1-Ounce, 50-Count Review

Forget those awkward clear liquids these WORK. I had HEAVY green algae in the hot sun in Auburn, California and it was amazing. Our home pond is 10 feet x 8 feet 24 inches deep.

Waste of money! 5 blocks in the pond according to the instructions according to the instructions - should dissolve in about 10 days and clear the water. After 2.5 weeks the blocks have not yet dissolved and the water is not clear. Don't waste your time with this.

We have been using these pond blocks for 2 years. Our koi are perfectly healthy and our water lilies are also perfectly healthy with beautiful colors. We will continue to use these pond blocks to combat algae which is degrading water clarity and oxygen levels in our 3 ponds.

These are miracle workers, my pond is not getting as much shade as I would like as we had to plant a new tree due to replacing the pond liner. So we get more algae than most. These miracles work wonders and overnight the algae are under control. We bought all the seaweed on the market and used the bales. love love love these

. With these blocks I threw two into my pond and it started to clear up. Every week I add one to the filter return and it helps. In fact, I can't remember the last time I saw rocks at the bottom. Also, my pond plants didn't get injured or die as some people have written.

I built a backyard pond from scratch. The filter system I made just didn't work. I went to the nearest shop by the pond and bought some of these blocks. The guy told me they work like magic. I put 2 blocks in my 800 gallon pond, one on the deep end and one on the shallow end. Within a few days the water was crystal clear! It was wonderful! So I searched the internet for this product and here it is. This product is highly recommended for this price.

After using various products, I found a pond block that can be used in my non-pond pond. While not ideal, it suppressed most algae during the summer. I like to use a block a week and forget about it. I found that you have to find the best spot for the block. Initially, I placed it where water constantly flowed over it. This caused the tablet to melt in about a day. After moving the block to where there was less water, it took about 7 days. Overall I am satisfied with this product.

This product was recommended by a fountain dealer to keep fountains clean and tidy. It seemed to do just that; However, after a few weeks, several nearby plants began to yellow and die. I've narrowed down the possible causes to my well. After reading the additional information on the product label, I am concerned that I may have accidentally harmed the birds that came to drink and bathe. The label is misleading as it depicts koi in a pond, suggesting it is safe for critters. It's my fault for…