Seachem Ammonia Alert for Freshwater and Marine Fish

***updated review based on new knowledge of how this works, please read and ignore the review underneath.*** This works by identifying dangerous ammonia not total ammonia which includes ammonium, typically the water test kits identify both ammonia and ammonium (which isn’t as dangerous to fish) and therefore will always show higher levels of Ammonia, so although water test kits are best and tell you where you are in the cycle, the alert is the one which will tell you when your fish are in danger without the need for water testing continuously. As soon as you see the alert start to rise you know there are dangerous levels of Ammonia present. This alert is best for an already cycled tank, I can say that my tank is now full of algae and happily cycled and I had no major issues. Just be aware that water test kits are a MUST and really i would only use those to cycle with. The Ammonia Alert does its job well, it won’t register total ammonia, only dangerous ammonia which is what’s important. I would recommend it for peace of mind when you get on with your cycled aquarium. Be patient and wait for the test kits to show 0 on both ammonia and Nitrite and then get this alert. Hope that helps. ***original review***Just a word of caution to anyone doing a fish in cycle with bottled bacteria (colony). This alarm thing seems a great idea but in reality the reaction is very delayed and shows 0 at low level ammonia, when water tests show 0.25, this showed 0. I woke in the middle of the night (thank goodness I did) and one of my clowns were agitated. Checked water parameters and ammonia is at 0.50! The “alarm” barely shows 0.04. A big difference 😩 thank god I had Seachem Prime to hand otherwise it would have been a horrible ending. It’ll stay in my tank but it’s definitely too delayed to make a quick change to save your fish, rely on water tests only.

Great little product for tanks, I wouldn't trust it completely and new aquarists or uncycled tanks will require better testing. However Great little visual marker for established and balanced aquariums.

This product is awesome, it has stopped my obsession to need to test everyday, I’m fairly new to fish keeping 6 months in, My tank is fully cycled but the need to make sure the perimeters were perfect everyday was still there, Spending alot of money if api test, I’ve had this in my tank for 3/4 weeks and I love it, I know it’s only measured free ammonia but as that is the worst for the fish so that’s what I’m going to worry about, I water change every week anyway, What I will say I’ve noticed is during the day it will be at the safe level, once the lights are off over night it moves to the first warning alert level, On googling this is completely normal as my lights are off which stops the plants doing their thing, as soon as the lights come on it goes back to safe level, I did do a strip test after a couple of days then haven’t again highly recommend this for peace of mind,

This product is a waste of money, it really doesn't work. I realised my new fish didn't seem happy a few days after i bought them (my tank was almost bare). I had a proper water test done and the ammonia and nitrite levels were dire so i bought this to keep in my tank so that i could monitor the water from the water changes i am having to do and for the future. It's been in my tank over a week and not moved from the 'safe' colour. I'm gutted it doesn't work like it is meant to. Waste of money!!!!

Now that my tank is cycled, stable, and mature, I’ve started using one of these to preserve my test kit supplies. I’d recommend that you understand exactly what this measures before being dissuaded by the negative reviews, because when used correctly these work excellently. Reasonably unobtrusive, and a bit smaller than I was expecting (it’s not credit card sized). Lasts for up to 1 year.

Use this every day for my marine tank

Works, set up a new tank, popped in place, started reading safe, added fish food to empty tank to start filter cycle, result showed an increase, added ammonia to carry out fishless cycling, result went off the chart as they should, now as tank is completing cycling result are showing the drop. Also compared with a Master Test kit, and result were almost identical. Was this review helpful to you? Please click YES!

i got this as i thought £10 for the year is cheaper than keep buying the strips, and i likes the idea of being able to see it all the time, incase of an ammonia spike. i have another tank which is cycling and when i put it from one tank to the other i can clearing see the colour change, in the new tank it turns green and when i put it back into my established tank it changes back again. BUT unless your doing this its quite difficult to see, especially as it changes with lighting, in my new cycling tank lights off its green, light on its yellow, obviously nothing can replace a proper ammonia check but its handy to have in there i suppose if something goes wrong and you get a spike you can see straight away and then get your testing kit out as you cant tell just by looking at the water...wouldn't it be great if we could!

Really liked this product for a ‘not super experienced yet’ aquascape wannabe. Feel I can check easily for the ammonia potential in the tank now and be confident to trust this little tool for keeping my tank safe and healthy.

Produto perfeito para acompanhar a amônia no aquário de forma prática e contínua. É fácil de usar, discreto dentro do aquário e dá muito mais segurança no monitoramento da qualidade da água, especialmente em montagens novas ou com animais sensíveis. Para mim, é um item essencial e vale muito a pena.

J'étais un peu sceptique mais à tort. Je l'ai acheté pour trouver le bon rythme de renouvellement de l'eau de l'aquarium et les indications m'ont été d'une grande aide. Je ne sais pas combien de temps cette plaquette sera efficace mais moi qui suis complètement débutante avec mon simple poisson, cela m'a donné un fameuse aide au lancement. D'ici quelques mois peut-être n'aurais-je plus besoin d'en racheter, je saurai par exemple que tous les 10 jours, il est temps d'agir. En bref, cette plaquette m'a donné un peu de confiance et je remercie cette marque rien que pour cela. Et il y a bien une modification de couleur visible au fur et à mesure que les jours passent. Je recommande ce produit pour les débutant(e)s comme moi.

This is a durable product which was stable in the tank for 2 months now. Will buy again if needed. It was quite effective in data display as well

8 am happy to have it. It is a safe guard for my little aquatic friends. Some will say it doesn't work because their drop test gives an other result. I did my researches. The drop test shows results for Ammonia and Ammonium together. Ammonium isn't toxic bu ammonia is very. The sensor of Saechem react to only Ammonia not to Ammonium. It is an important thing to know.