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Tetra Nitrateminus Liquid, 250 ml

4.2 out of 5 stars 131 customer reviews
| 6 answered questions

RRP: £8.70
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21 new from £5.89
250ml
  • Tetra Nitrateminus
  • Size 250ml
  • Biological nitrate reduction in easy to use liquid format
  • Long-term improvement of the water quality
  • Helps control the growth of algae

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Frequently bought together

  • Tetra Nitrateminus Liquid, 250 ml
  • +
  • Tetra Crystal Water Clarifier, 250 ml
  • +
  • Tetra Easy Balance Water Change Conditioner - 500 ml
Total price: £24.13
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Size Name: 250ml

Product information

Size: 250ml
Technical Details
Pet TypeFish and Aquatic^Fish and Aquatic
Item Weight272 g
Product Dimensions17.5 x 7.4 x 4 cm
Item model numberT277
Size250ml
Weight270 Grams
Number of Items1
Quantity1
Specific UsesIndoor^Suitable for Fresh Water
  
Additional Information
ASINB002SQIJVQ
Best Sellers Rank 847 in Pet Supplies (See top 100)
Shipping Weight281 g
Date First Available1 Nov. 2009
  
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Product description

Size Name:250ml

Product description

High nitrate levels can encourage excessive algal growth which can make the aquarium look unsightly. Unlike other nitrate reducing products which need regular recharging and replacing NitrateMinus is simply added weekly to the aquarium. Also unlike many ordinary nitrate reducing products NitrateMinus does not need to be added to a filter system to work but is simply added straight to the water.

How it WorksNitrateMinus utilises a natural biological process called denitrification to remove nitrate. Under conditions of low oxygen such as are found under the gravel in most aquariums special bacteria use nitrate instead of oxygen to break down the NitrateMinus granules. By doing so they steadily reduce existing nitrate levels and maintain a permanently low level. In addition to removing nitrates NitrateMinus also releases a low level of carbonates into the water which helps to stabilise the pH of the water.

How to UseSimply add the required dose of NitrateMinus to the aquarium once a week to keep nitrate levels low. NitrateMinus must be in an oxygen poor environment to work. The effectiveness of NitrateMinus may therefore be reduced in aquariums with undergravel filters.

Box Contains

  • Each order comes with 1 x Tetra Nitrateminus Liquid, 250 ml

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    Customer Questions & Answers

    Customer Reviews

    Top Customer Reviews

    By Steven Piercy TOP 1000 REVIEWER on 26 April 2016
    Size: Pack Of 1 Verified Purchase
    I haven’t owned an aquarium for all that long, and like many beginners, I neglected to do my research first. Unfortunately the staff at the local pet supermarket didn’t advise me about nitrates, cycling, testing, or any of the other fairly essential things you need when keeping fish.

    I now have all of the essentials, but only through trial and error and sadly, a few dead fish.

    If you’re going to keep fish in a tank you need to understand that fish poop, and fish food and poop rot. When they rot, they give off ammonium. Ammonium is poisonous. When enough ‘good’ bacteria develop, they turn this into nitrate and nitrite (also toxic, but slightly less so). This can be managed by further bacterial development, but also through regular water changes and chemical intervention.

    This product contains a biological component which helps in the denitrification process. It’s a gritty product, suspended in a milky gel. I shalln’t put here quite what it looks like, but you can imagine!

    As for the nitrates/nitrites, this isn’t an overnight fix, but in addition to other products I have bought, it seems to be doing the right thing.

    I happily paid full price for this product, and believe it represents excellent value when compared to the cost of much smaller bottles from the shops. It is also dirt cheap compared to re-stocking your tank if your fish all die off.

    Like I say, I’m a beginner, but if I can help with any questions, please leave them in the comments, and/or use the voting buttons. Thanks for reading.
    1 Comment 15 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Size: Pack Of 1
    We bought this when our fish tank had an algae problem, we have so far only used it once but there is already a very noticeable difference in the algae levels in our tank. The cap makes the solution easy to measure out & it is a very simple product to use, as all of the Tetra range is. If, like the reviewer below, your instructions are in German, shake well before use & the doseage is 2.5ml per 10l of aquarium water to be administered once weekly, it says it may take a few treatments for a noticeable difference but ours took only 1, you are also to keep dosing every week if you want to keep the nitrate levels down. Would definitely recommend this for anyone with algae-related problems!
    Comment 21 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    By Andy TOP 1000 REVIEWER on 16 Oct. 2015
    Size: 250ml Verified Purchase
    **UPDATE**
    Down from 40ppm to 20ppm pre water change - I'm just about to start my second bottle - it's working

    I've been using this for 6 weeks now and the readings seem to be considerably down. Having read more about this approach, it appears that Nitrateminus contains bacteria - which usually live in stagnant water.... so if my theory is correct then most of these die of when introduced to my "clean" fishtank but some are getting to live on and build up in the sub strata.... If this is the case then - when the little critters are established - I should only need to add a maintenance dose every now and again.... Will update with results.

    It does seem to reduce the nitrates - but not very much..... On price performance it's just dreadful... I was expecting to just have to use it on peaks but like so many of these chemical fixes... they require constant use. Next stop nitrazorb
    Comment 5 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Size: Pack Of 1 Verified Purchase
    Does what it says on the bottle, our water supply suffers with High nitrate levels, this is bringing it down and controlling it
    Comment 10 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    By Smee TOP 1000 REVIEWER on 14 Aug. 2016
    Size: 250ml Verified Purchase
    It arrived quickly and well packaged and simple to use - you have the amount to use in a given water volume.
    Used in a 240 litre tank and didn't see much in the way of results, I'm sure it's doing something but I upped the dose and still couldn't really see much difference.

    I'm going to start doing a water change in a week or so to see if that lowers the NO, but sadly the Tetra liquid seems to have a limited impact..

    Sure it may work for others, but I can't recommend.
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    Size: 250ml Verified Purchase
    fast delivery used this before and its very good , we have well water and its high in nitrates etc not as pure as people think it is, i lost 2 gold fish last year when we moved, due to the well water, so far so good many thanks jean
    Comment One person found this helpful. Was this review helpful to you? Yes No Sending feedback...
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    Size: 250ml Verified Purchase
    Basically this does what it says on the bottle it reduces the nitrate in your aquarium but you have to use it a couple of times not much more you can write about this it is good stuff though if you are having trouble with your tank I would recommend this.
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    Size: 250ml Verified Purchase
    I have used this product since I started this last fish tank and have not been disappointed. Nitrates are nasty things which fish soon die from, as they accumulate in the water. This product prevents the build up sufficiently to protect your fish.
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