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.

Seachem Prime Concentrated Conditioner 500 Ml

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Description

💧 Keep your tank thriving with Seachem Prime—because your aquatic life deserves the best!

ULTIMATE WATER DETOX - Powerfully neutralizes harmful chlorine, chloramines, ammonia, and nitrites for crystal-clear, safe aquatic environments.
CLEAN ODORLESS DOSING - No smell, no clouding—ensures a pristine water change experience without disrupting your aquatic ecosystem.
CONCENTRATED EFFICIENCY - Just 5ml treats a massive 250 liters—maximizing value and minimizing waste for savvy aquarium pros.
VERSATILE AQUARIUM ALLY - Perfectly formulated for both freshwater and marine tanks, supporting all fish, invertebrates, and plants.
LONG LASTING RELIABILITY - 500ml bottle lasts ages, ideal for routine maintenance, emergency spikes, or new tank setups—never compromise on water quality.

Seachem Prime Concentrated Conditioner is a highly effective water treatment solution that neutralizes chlorine, chloramines, ammonia, and nitrites. With a potent formula where 5ml treats 250 liters, it’s designed for both freshwater and saltwater aquariums. Safe for all aquatic species, odorless, and non-clouding, this 500ml bottle offers long-lasting value for routine maintenance, emergency use, and new setups, ensuring optimal water quality and biofilter health.

Specifications

ASIN	B00025694O
Allergen Information	BPA-Free
Best Sellers Rank	564 in Pet Supplies ( See Top 100 in Pet Supplies ) 1 in Health Supplies for Fish & Aquatic Pets
Brand Name	Seachem
Customer Reviews	4.8 4.8 out of 5 stars (36,908)
Global Trade Identification Number	00000116043304
Item Form	Liquid
Item Weight	0.6 Kilograms
Liquid Volume	500 Millilitres
Manufacturer	Seachem
Manufacturer Part Number	075220
Model Number	67104330
Pet Type	Fish
Target Species	Fish
UPC	701485546228 707005178788 611102106516 000116043304
Unit Count	500.0 millilitre

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281.70 DT

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

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Seachem Prime Concentrated Conditioner, 500 ml

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Details

Description

Specifications

Common Questions