What dosage would i need for a 45 litre tank please

I prepare my water in 10 litre buckets, I put 5 drops in each bucket of water before adding to the tank. So for 45 litres of fresh water you would need 23 drops. The bottle comes with a flip lid and a small hole so it is very easy to dispense one drop at a time. It doesn’t seem a lot but it works, the best you can buy. I never use anything else. Hope this helps.

I’ve been trying to cycle a new sponge filter 60 litre freshwater tank and nitrites level is high. Can this product help reduce nitrite levels?

Yes it will, but reducing nitrates isn't it's main feature, do small daily or every 2 days water changes, the levels have to spike before they drop,add some fish food even if the tank is empty and also check the tap water levels.

Very expensive its only£6 80 in my local pet shop have you anything cheaper

Prime is very concentrated. You only need 10ml to treat 400 Litres! most other products require about 10ml to treat 40 L. So it lasts about 10 times as long as them. If its double the price... that's still 5 times better value. Prime also detoxifies ammonia and nitrite.

do you need to use this every 48 hours? or just the once then every week when doing a 20% water change?

If you want to use this specifically to detoxify high levels of nitrite, nitrate etc, then you need to dose every 48 hours. If you wish to use it to condition water change water, then you only need to add it to the water that you're putting into the aquarium.

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Seachem Prime Concentrated Conditioner, 500 ml

Seachem Prime Concentrated Conditioner, 500 ml

Product ID: 48209411

Details

Brand
Seachem
Item form
Liquid
Item weight
0.6 Kilograms
Liquid volume
500
Number of Packs
1

🌊Safe for fresh & saltwater

💧5ml treats 250L water

🧪Detoxifies ammonia, nitrite & nitrate

8420 kr

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Description

💧 Transform your tank water, transform your aquatic world!

BIOFILTER BOOSTER - Supports natural biofilter function by converting toxins into harmless compounds, accelerating tank cycling.
DUAL HABITAT READY - Perfectly balanced for both freshwater and saltwater aquariums—one solution, all tanks.
CLEAN SAFE DOSING - Non-acidic, odorless, and residue-free—keeps your aquatic environment stable and your fish thriving.
COMPLETE DETOX POWER - Neutralizes chlorine, chloramine, and binds toxic ammonia & nitrites for crystal-clear water.
ULTRA CONCENTRATED FORMULA - Just 5ml purifies 250L—max efficiency, minimal waste.

Seachem Prime Concentrated Conditioner is a powerhouse water treatment that neutralizes chlorine, chloramine, and detoxifies ammonia, nitrite, and nitrate in both fresh and saltwater aquariums. Highly concentrated, a small 5ml dose treats 250 liters, making it cost-effective and long-lasting. It supports biofilter health without altering pH or overactivating protein skimmers, ensuring a safe, stable environment for all aquatic life. Trusted by thousands, it’s the go-to solution for pristine, healthy aquarium water.

Specifications

ASIN	B00025694O
Allergen Information	BPA-Free
Best Sellers Rank	560 in Pet Supplies ( See Top 100 in Pet Supplies ) 1 in Health Supplies for Fish & Aquatic Pets
Brand	Seachem
Brand Name	Seachem
Country Of Origin	USA
Customer Reviews	4.8 out of 5 stars 37,488 Reviews
Global Trade Identification Number	00000116043304
Included Components	Seachem Prime 500ml
Item Form	Liquid
Item Type Name	water conditioner
Item Weight	1.3 Pounds
Item form	Liquid
Item weight	1.3 Pounds
Liquid Volume	500 Millilitres
Liquid volume	500 Millilitres
Manufacturer	Seachem
Manufacturer Part Number	075220
Model Number	67104330
Number of Items	1
Number of Packs	1
Pet Type	Fish
Product Warranty	3 years
Target Species	Fish
UPC	701485546228 707005178788 611102106516 000116043304
Unit Count	500.0 millilitre
Unit count	500.0 millilitre

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8420 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered 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 Iceland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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