I have a 800 gallon koi pond they say on first go drop 2 or double up.as its only 800gallon how will this work for me any answers please

I have a 4000 gallon koi pond and I just followed the instructions on the packet and dropped in 8 sachets. It didn't do much to the blanket weed but it certainly cleared the water and I can see the bottom of the pond which is about 3'6" deep. Since then I have dropped in 4 sachets now and then but I am using Green Go for the blanket weed. All is working well so I suggest you just follow the instructions.

do you have to turn off the uv light when using this or leave it on

The uv light was on all the time

Is the pond life save when using this

Yes all pond life, fish, plants,frogs,dragonfly s etc are very safe

My pond only holds 25 gallons so how much should I use

Not a lot. A calculation would give about 1/40 of a sachetbut if it were me I'd probably drop in 1/2 of a sachet. That should work well without harming anything as it's a natural product.

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Swell Control Green Sludge Remover (2 Packs). Natural Clear Water Pond Treatment and Sludge Remover (12 tablets)

Product ID: 71110041

Details

Brand
Swell UK
Item form
Tablets
Item weight
0.37 Kilograms
Liquid volume
12000 Gallons
Unit count
2.00 count

💧Treats 4546L per dose

🦠Packed with beneficial bacteria

♻️Safe for year-round use

₩64460

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Description

💦 Clear water, happy pond — don’t let sludge steal your shine!

MASSIVE COVERAGE - Each dose treats up to 4546 liters (1000 gallons) of pond water
SAFE FOR ALL POND LIFE - Perfectly formulated for Koi, community fish, and wildlife ponds
EFFORTLESS CLARITY BOOST - Pre-dosed tablets fit straight into your filter for zero hassle
CONSISTENT POND PERFECTION - Economic 2-pack designed for dosing every 1-2 weeks to maintain crystal clear water
ECO FRIENDLY SLUDGE BREAKDOWN - Powerful bacteria naturally digest organic sludge, keeping your pond pristine

Swell Control Green Sludge 2 Pack offers a convenient, pre-dosed solution to pond sludge and murky water. Each tablet treats up to 4546 liters, using beneficial bacteria to naturally break down organic matter. Safe for Koi, community fish, and wildlife ponds, this year-round treatment keeps your pond crystal clear with minimal effort.

Specifications

ASIN	B07C2TMN69
Best Sellers Rank	63,524 in Garden ( See Top 100 in Garden ) 259 in Water Garden & Pond Treatment
Brand Name	Swell UK
Country Of Origin	United Kingdom
Customer Reviews	4.0 4.0 out of 5 stars (503)
Item Form	Tablets
Item Weight	0.37 Kilograms
Liquid Volume	12000 Gallons
Manufacturer	Swell UK
Manufacturer Part Number	SWLATREAT-Parent
Model Number	SWLATREAT-Parent
Target Species	Fish
Unit Count	2.00 count

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₩64460

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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