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Poster Info

Senior Member
Posts: 844
Registered: February 2009
Location: Cambridge, Ontario, Canada


Hagen Ammonia test kit for fresh water A-7820
Reviews Views Date of last review
1 3755 Wed March 25, 2009
Recommended By Average Price Average Rating
100% of reviewers $10.00 4.0


A liquid test kit for ammonia. 0.0 - 7.3 mg/l, 70 tests. Includes a glass test tube with stopper, a long-necked plastic bulb for water extraction and a plastic tray for holding all items including the test solution.

An included chart indicates the proportion of ammonia (NH3, toxic) to ionic ammonium (NH4+, non-toxic) at various pH readings.

This is a "Nessler"-based colour change test and is not compatible with certain water conditioners like AmQuel+.
Keywords: ammonia testkit freshwater

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Senior Member

Registered: February 2009
Location: Cambridge, Ontario, Canada
Posts: 844
Review Date: Wed March 25, 2009 Would you recommend the product? No | Price you paid?: $10.00 | Rating: 4 

Positive aspects of the product (pros): Easy to use, nice siphon bulb, included tray
Cons: Seems inaccurate, incompatible with certain water detoxifiers

It seemed to work for me but always indicated 0.6 (safe?)

However one of my fish died and when a second one started getting ill, I used AmQuel+ which forced me to change test kits (to API). My first result was 1.0 - toxic.

Unfortunately the second fish died and I can't help but wonder - if this test kit was more accurate, would they have lived?

So I can't recommend it.

It's easy to use, only one reagent bottle, and the tray seems insignificant but a great idea - I wish API would do this to hold the test tube in place while you add reagent. I've toppled over the API test tube several times already. The plastic siphon bulb is also very nice, I use it to fill my API test tubes.
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