All the fishes in my tank died

[maverick786us]

I’ve no idea what those products are, do you have links?

I am trying to look for it. But cannot find any website of this product or vendor. Or maybe its website is filtered here (it’s a Chinese product). I was skeptical about it but then I saw some customers buying it, and I asked them, they gave me a positive review.

 

[hypnogogia]

https://www.cloningaquapets.com/products/aquatic-remedies-5-in-1-planted-aquarium-fertilizers-and-liquid-carbon\

nothing at all about concentrations of active ingredients...