Customer reviews of daphbio

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9,2 /10
Overall rating: 9,2 out of 10
Based on 2 537 published reviews

Summary of reviews

The online store daphbio is highly regarded for its effective and high-quality products that consistently deliver impressive results in aquarium maintenance. Customers often highlight the effectiveness of specific items like Bactoreef and Daphbio Microfauna Booster, noting significant improvements in water clarity and the overall health of their aquariums. Delivery is frequently praised for being fast, secure, and efficient, with orders arriving well packaged and on time. The customer service is described as responsive and professional, enhancing the overall shopping experience.

1 star review

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SEBASTIEN K.
Rating: 1 out of 5
following a purchase from 04/05/2026
I followed the operating procedure for breeding daphnia... Despite this, they died in less than 1 week despite the addition of purchased algae.
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André M.
Rating: 1 out of 5
following a purchase from 29/03/2026
Hello, I have a 3m³ pond and after distributing the product, the water is still green and there are no results. After rereading the product description, it states that the cap should be left open to keep the bacteria alive. If the product had been in the bottle for a long time, that's why I have no results. I am disappointed especially since the price is significant.
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Response from daphbio
Hello Mr. Mellerin,

We are sincerely sorry and surprised to learn that you have not obtained the expected results in your 3 m³ pond.

In order to better understand the situation and assist you effectively, could you please send us a photo of your setup to the following address: [email protected]? This will allow us to analyze your pond more precisely and advise you better on the use of the product.

Regarding storage, you should not leave the cap open. The bottle must remain tightly closed to best preserve the quality of the product. Can you let us know where you saw this information so we can verify it on our side?

Awaiting your response, we remain at your complete disposal.

Best regards,
The Daphbio team
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Rocco D.
Rating: 1 out of 5
following a purchase from 27/03/2026
Unfortunately, the product has proven to be completely ineffective. I followed the recommendations to the letter, both for using the anti-cyan bottle and for the bacteria falcon by disconnecting the skimmer each time. The cyan are still there, I have recorded a wrinkling of the actinodiscus but I cannot definitively attribute the cause to the product in question. The fish have not experienced any discomfort.
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Lorène B.
Rating: 1 out of 5
following a purchase from 14/03/2026
Bottle containing only water and a few not very lively specimens. They died in 2 hours while the tank was perfectly set up. In short, a beautiful very expensive scam. ....
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romain M.
Rating: 1 out of 5
following a purchase from 30/01/2026
Well, it didn't change anything for my bac. No Dauphiné survived and no repro.
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Daniel D.
Rating: 1 out of 5
following a purchase from 23/01/2026
No effect on cyanobacteria, I then used the absolute black method, no light and aquarium covered for 7 days and 7 days later all the cyanobacteria had disappeared, I should have started there I wouldn't have lost 79.48€.
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Julien V.
Rating: 1 out of 5
following a purchase from 12/12/2025
The protocol I followed to the letter did not work at all. Despite the instructions being followed scrupulously. I am disappointed because I have already used Daphbio products in the past and I was very satisfied with them.
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Ralf W.
Rating: 1 out of 5
following a purchase from 08/12/2025
Very bad, the goods did not arrive completely. Then no one took care of it!
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Damien B.
Rating: 1 out of 5
following a purchase from 24/11/2025
It's simply a scam of H2O water, really disappointed no results. I'll never be fooled again, moreover it's confirmed by a store that I greatly appreciate which argued to me the lack of credibility in all the products offered.
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Benoit F.
Rating: 1 out of 5
following a purchase from 09/11/2025
The product had no effect on cyanobacteria
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Laurent M.
Rating: 1 out of 5
following a purchase from 31/10/2025
This product did not remove the cyanobacteria. The water has now turned completely white, despite multiple water changes, it is impossible to make it clear.
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BAPTISTE D.
Rating: 1 out of 5
following a purchase from 23/10/2025
Empty product and unconvincing customer service response
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olivier C.
Rating: 1 out of 5
following a purchase from 07/10/2025
second attempt, still inconclusive
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Francesco T.
Rating: 1 out of 5
following a purchase from 02/10/2025
It didn't really work the Microfauna
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Lucien S.
Rating: 1 out of 5
following a purchase from 25/09/2025
Too expensive for what it is
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Bruno V.
Rating: 1 out of 5
following a purchase from 17/09/2025
No results, however the corals are dying. Too disappointed.
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Thierry L.
Rating: 1 out of 5
following a purchase from 14/09/2025
A big scam!
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Marco P.
Rating: 1 out of 5
following a purchase from 28/08/2025
Good evening, I have been a customer of yours for a long time and I have often bought top products.. But now I purchased the product for cyanobacteria and it hasn't worked at all.
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Philippe V.
Rating: 1 out of 5
following a purchase from 01/09/2025
Seaweed always present I am disappointed
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MARCO M.
Rating: 1 out of 5
following a purchase from 03/08/2025
the product instructions to download on the site are very confusing and different from those written on the bottle
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Antoine S.
Rating: 1 out of 5
following a purchase from 05/07/2025
Microfauna received completely dead upon arrival
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Thierry D.
Rating: 1 out of 5
following a purchase from 01/06/2025
I did not receive it on the scheduled date and have not heard anything since. I hesitated to use Collissimo; I should have known better. There are always problems with the post. I hope to hear from you very soon.
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francis L.
Rating: 1 out of 5
following a purchase from 28/04/2025
Barely I put the daphnias in the water 1/2 hours later they were all dead.
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VINCENT D.
Rating: 1 out of 5
following a purchase from 26/04/2025
Put in a micro tank on the day of receipt with water that has rested for more than 48 hours, unfortunately just 5 days and nothing left, no life at all. I threw 50 euros in the trash, I am really disappointed.
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Giovanni P.
Rating: 1 out of 5
following a purchase from 21/04/2025
They don't work at all and I followed the instructions to the letter
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olivier C.
Rating: 1 out of 5
following a purchase from 19/04/2025
catastrophic !!!!!
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Gilles V.
Rating: 1 out of 5
following a purchase from 03/04/2025
Good
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Gianluca T.
Rating: 1 out of 5
following a purchase from 05/04/2025
Totally ineffective anti-cyan product.
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Audrey F.
Rating: 1 out of 5
following a purchase from 12/03/2025
Hello, I am extremely disappointed with what I received. And the inside of the box looked like a trash can.
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Chris K.
Rating: 1 out of 5
following a purchase from 01/03/2025
unacceptable customer service, extreme algae growth after dosing.
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Yannick P.
Rating: 1 out of 5
following a purchase from 16/02/2025
No difference after using zero microphone products
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José D.
Rating: 1 out of 5
following a purchase from 28/01/2025
Unreliable products
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eric J.
Rating: 1 out of 5
following a purchase from 14/01/2025
all life except on 2 or 3 unfortunate bugs, daphnia or others was absent, distinguished under the microscope
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Giovanni P.
Rating: 1 out of 5
following a purchase from 07/01/2025
It doesn't work 80 euros thrown away
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Vito G.
Rating: 1 out of 5
following a purchase from 22/12/2024
Good morning, very bad shipping time. I paid to have the goods within 24 h and arrived after 72 h.. I do not add anything else. Best Regards.
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Thomas G.
Rating: 1 out of 5
following a purchase from 19/12/2024
Despite following the protocol provided by the seller, still no life in my tank. Very disappointed with the microfauna product (especially since it didn't work). Sincerely
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philippe B.
Rating: 1 out of 5
following a purchase from 28/11/2024
only one order placed with daphbio on 28/11, in the parcel a 500ml can of fertilizer leaking. impossible to contact anyone by phone (to this day i'm still trying to get them on the phone), no one answers. i sent a message via the contact form on 7/12, wanting to attach a video of the leak, but it was impossible to send the file, even in 3 different formats. daphbio told me they needed the video proving the leak, which i could do, but how could i send it? i sent a message back on 24/12, no reply, a second message on 30/12, still no reply! when you see the prices of the products on offer, you think they must be good products, but you also expect customer service to do its job. but here, nothing, daphbio is quietly burying its head in the sand. we wonder why we go abroad to buy, with french companies like this one, we know why. a bunch of good-for-nothing crooks who don't assume that there can be any manufacturing errors or problems whatsoever. i'll be sure to tell every aquarist i meet about this thieving company!
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christophe B.
Rating: 1 out of 5
following a purchase from 10/12/2024
Hello gentlemen, I had a cyano attack and as usual I called on your products but unfortunately no effect! I contacted Benoit who kindly replied but he clearly said that it wasn't cyano and that he couldn't see any bubbles but your product was never blamed. I did a 500ml treatment for a 600l tank and nothing cyano grew? So that's it, I won't be using your products again...1080e order in 2024. Happy holidays.
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MANUEL JOÂO T.
Rating: 1 out of 5
following a purchase from 30/11/2024
The UPS carrier did not give me confidence If in the future I return to shop at daphbio and the carrier is UPS, I will not buy at daphbio.
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Stephane D.
Rating: 1 out of 5
following a purchase from 03/11/2024
Product does not work
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