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Most Recent Questions
Recent Question:
Will Pond Block change the PH in water?
Recent Question:
what water temperature should my pond be to use algae control
Recent Question:
Is this product safe for use in ponds coated with Pebble Tec finish?
Recent Question:
Is the Pond Water Clarifier safe for dogs?
Recent Question:
Is this this the best product for my fountain I have no fish or plants
Questions with Most Recent Answers
Question:
what water temperature should my pond be to use algae control
Question:
Will Pond Block change the PH in water?
Question:
Is this product safe for use in ponds coated with Pebble Tec finish?
Question:
Is the Pond Water Clarifier safe for dogs?
Question:
Is this this the best product for my fountain I have no fish or plants

Customer Questions & Answers for
Tetra Pond Block

Pond Block helps clear cloudy water and remove algae from ornamental ponds or fountain water. Pond Block is limited for use in backyard/homeowner ponds and water fountains. For containerized ponds only. Not recommended for use with live plants. EPA registered.
Customer Questions & Answers:
7 Questions
 | 
7 Answers
Overall Rating:
5 out of 5
5
out of
5

Questions & Answers for Tetra Pond Block

Question

Safe for animals

Is this product safe for animals to drink the water? I have a small 5 gal. pond/fountain. How much of a block would I use since it is so small?
Size of tank: Less than 10 gallons
asked 1 year, 9 months ago
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Terri
Calif.
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Yes. We would recommend our fountain sized version of this product. 1/8 of that block would suffice. This particular block is so concentrated, we cannot break it down to such a small amount.

BREX
answered 1 year, 9 months ago
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BREX
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Question

How long does it take for tetra pond block to dissolve?

We got some tetra pond block a Lowe's. It hasn't dissolved after a week in the pond. We tried it in a bucket of warmer water inside. It does not dissolve.
How long have you owned an aquarium? 3+ years
Type of tank: Goldfish
Size of tank: 21 to 50 gallons
asked 2 years, 1 month ago
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Janeskid
Nevada
on Pond Block
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answer 1
Hello,

Tetra Pond Block gradually dissolves over a period of 30 days. You replace it once a month. At this time of year, if it is cold where you are, it may take a little longer, but 30 days is average.

Regards,
BREX
answered 2 years, 1 month ago
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BREX
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Question

SHOULD I BE USING TETRA POND BLOCK OR TETRA FOUNTAIN BLOCK FOR A 6' X 6' X 1' POND WITH A LINER AND CIRCULATING PUMP ?

disregard reference to aquarium
How long have you owned an aquarium? 3+ years
asked 10 months ago
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BLOOBS
Easton, PA, USA
on Pond Block
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answer 1
According to your dimensions stated, your pond holds approximately 270 gallons. Because of this size, we recommend using Pond Block as each block treats 250 gallons of water. Fountain Blocks each treat 80 gallons.

Kind Regards,
Tetra2
answered 10 months ago
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BREX
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Question

if the pond block desolves in 30 days, will it be safe for a dog to drink from the fountain after this period?

asked 10 months ago
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scoop
Seattle, WA, USA
on Pond Block
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Yes, it would be fine, but you usually put a new one into the pond every 30 days to keep the algae from growing, throughout the entire summer. It is always best to just keep dogs and cats from ponds, in general, as they can pick up various protozoa as well, which can cause diarrhea.

BREX
answered 10 months ago
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BREX
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Question

Will this product hurt wild birds when in my pond and waterfall?

How long have you owned an aquarium? 3+ years
Size of tank: Larger than 50 gallons
asked 9 months ago
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columbine
Salt Lake City
on Pond Block
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We recommend you ward off consumption of pond water for 12-24 hours after this product is initially introduced to your pond.

Tetra2
answered 9 months ago
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BREX
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Question

Do Pond Blocks harm fish?

Pond Block's label says it is for "ornamental fish pond" with a picture of gold fish pond. But in the "Caution" section, it says it is a herbicide that kills fish and plants. It is confusing. Is Pond Block OK for a fish pond?
asked 9 months ago
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Kent
on Pond Block
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Yes it is, as it very slowly releases its ingredients into the pond over a 30 day period. You would have to use a much higher dose than what we recommend, to affect the fish.

BREX
answered 9 months ago
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BREX
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Question

Will Pond Block change the PH in water?

How long have you owned an aquarium? 3+ years
Type of tank: Tropical
Size of tank: Larger than 50 gallons
asked 1 week, 3 days ago
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Wailoky
Diamond Bar
on Pond Block
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No, because it is slowly released over a period of four weeks, it will not affect your pH.

BREX
answered 1 week, 1 day ago
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BREX
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