Can you use with pump feed ponds

Yes. No probs. As far as i understand its also benificial to your filter . Used it for a couple of years now along with kh up. And koi clay. All good .

What’s is a ratio mg to ca ?

No idea, all I do know if the water hardeness is well below the 8dh level the pond quality will function less,due to a depletion of minerals in the water, which in turn can affect the fish plus the PH level, best contact NT labs for more information, that's why I check mine on a regular basis along with other chemical tests

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NT Labs Koi Care GH Minerals Up (1.5kg)

Product ID: 53170368

Details

Brand
NT Labs
Item form
Powder
Liquid volume
1.5 Kilograms
Manufacturer
NT Labs
Unit count
5000.0 gram

💧Safely boosts GH levels

⚖️Precise dosage with calculator

🇬🇧Made in the UK with quality

€ 38.92

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Description

💧 Elevate your pond’s vitality — because your koi deserve the best!

DATA DRIVEN WATER CARE - Pair with NT Labs Test Kits to maintain GH above 8 dGH for peak water quality
EFFORTLESS APPLICATION - Simple dissolve-and-dose system with online calculator support
TRUSTED BRITISH CRAFTSMANSHIP - Formulated and manufactured in the UK under strict quality standards
OPTIMIZE YOUR PONDS HARDNESS - Safely elevates GH to ideal levels for thriving aquatic life
SCIENTIFICALLY BALANCED MINERALS - Calcium & magnesium support fish growth and metabolism

NT Labs Koi Care GH Minerals Up (1.5kg) is a premium mineral powder designed to safely increase the general hardness (GH) of pond water. Enriched with essential calcium and magnesium, it supports vital biological functions in fish and pond life. Easy to dose with an online calculator and compatible with NT Labs Test Kits, it ensures optimal water conditions. Proudly made in the UK, this product guarantees quality and reliability for both novice and expert pond keepers.

Specifications

ASIN	B00AHA2HIQ
Best Sellers Rank	33,700 in Garden ( See Top 100 in Garden ) 202 in Water Garden & Pond Treatment
Brand Name	NT Labs
Country Of Origin	United Kingdom
Customer Reviews	4.6 4.6 out of 5 stars (61)
Included Components	Powder
Item Form	Powder
Item Type Name	Pond Fish Food
Liquid Volume	1.5 Kilograms
Manufacturer	NT Labs
Manufacturer Part Number	00425
Model Number	NT Labs
Number of Items	1
Pet Type	Fish
Target Species	Fish
UPC	733809004251
Unit Count	5000.0 gram

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€ 38.92

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered 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 Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Excellent communication throughout the order process. Product is perfect.

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