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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Prime Water Conditioner, 100 ml

Product ID: 48415448

Details

Brand
Seachem
Item form
Liquid
Item weight
3.5 Ounces
Liquid volume
100
Number of Packs
1

🌊Safe for fresh & saltwater

💧1 cap treats 200L water

🧪Detoxifies ammonia, nitrite & nitrate

₹ 1754

Duties & taxes included

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Description

💧 Keep your aquarium flawless—because your fish deserve the best!

FISH PLANT SAFE - Gentle yet effective—supports all species without residue or harmful side effects.
POWERFUL DETOX ACTION - Neutralizes chlorine, chloramine, ammonia, nitrite, and nitrate for a safe aquatic environment.
ULTRA CONCENTRATED FORMULA - Small dose, massive coverage—one cap for 200L keeps your aquarium pristine.
EMERGENCY READY EASY DOSING - Handles toxic spikes up to 5x dosage; use syringe for precision and peace of mind.
VERSATILE FRESH SALTWATER USE - Perfectly balanced for both freshwater and marine tanks—one product, endless possibilities.

Seachem Prime Water Conditioner is a highly concentrated, multi-functional treatment designed to detoxify harmful chemicals like chlorine, chloramine, ammonia, nitrite, and nitrate in both fresh and saltwater aquariums. With just one dosing cap treating up to 200 liters, it ensures safe, clean water for fish, plants, and invertebrates. Trusted by over 37,000 users with a 4.8-star rating, it’s the go-to solution for routine maintenance, emergency detox, and new tank setups.

Specifications

ASIN	B000255PFI
Allergen Information	Gluten Free
Best Sellers Rank	609 in Pet Supplies ( See Top 100 in Pet Supplies ) 7 in Aquarium Water Treatments
Brand	Seachem
Brand Name	Seachem
Country Of Origin	USA
Customer Reviews	4.8 out of 5 stars 37,410 Reviews
Global Trade Identification Number	00000116043502
Included Components	water conditioner
Item Form	Liquid
Item Type Name	aquarium water conditioner
Item Weight	3.5 Ounces
Item form	Liquid
Item weight	3.5 Ounces
Liquid Volume	100 Millilitres
Liquid volume	100 Millilitres
Manufacturer	Seachem
Manufacturer Part Number	075222
Model Number	67104350
Number of Packs	1
Pet Type	Fish
Product Warranty	2 year
Target Species	Fish
UPC	703062507042 000116043502
Unit Count	100.0 millilitre
Unit count	100.0 millilitre

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