Brightwell Aquatics Remineraliz - Adds Minerals to Distilled, Deionized, or Reverse Osmosis Water for Freshwater Aquarium Use 500-ml

I had a boil order placed on my tap water for a few weeks, so I had to buy water at the grocery store to do water changes. I am not used to remineralizing water but it was recommended to me since I had to buy water. The instructions on the bottle were easy to follow, the product worked great and my fish and plants are happy! I just have a little 10gal freshwater aquarium, and our water is back to normal now. I’m glad I was able to buy a smaller bottle of this but I still ended up with a lot left over lol

I puchase this product once a month for my RODI Water. It is a necessary item if you use RODI water for tropical fish. I have very tender species of tropicals that I cannot use ro water with. This product maintains the proper mineralization without being harmful even with accidental increased dosing. It works fine with buffers of any kind. I raise betta fry in the water with this product which is amazing how much difference it makes over other brands of remineralizer. This product is easier to find than other brands plus the price is reasonable if you follow the dosing. One 500 ml bottle lasts me for aprox 1000 gallons. Excellent product for the price.

I used to use Seachem Equilibrium -- which works but it's hard to get all the powder dissolved. This stuff works better.

Love this product. I hate what powdered calcium supplements do to my planted aquarium. This product prevents that dust.

First of all my bottle was not sealed and was leaking, only approx. 5 ml. was missing but that's not the main issue. When I try a new product like this I like to set a base line with one gallon of RO Water. I started with 1ml of product in one gallon and nothing. I kept adding 1 to 2 ml at a time and testing until I reached 40ml and got no increase in dGH. I tested the product straight out of the bottle and only got a reading of 1 dGH in a 5ml sample. I thought this would be my answer over using powdered products but not where you have to empty a whole bottle in a 5 gallon bucket of RO water to do a water change in a 20 gallon tank.DON'T WASTE YOUR MONEY ON THIS PRODUCT.UPDATE: I returned this product for a replacement thinking I just received a bad batch. My replacement bottle was exactly the same as the first. Don't waste your time and money on this product!!!!

Like many reviewers, I use RO/DI water for multiple aquariums. Thought I would give this a try, not sure if I got a bad bottle or what, but to quote another reviewer, not entirely sure what I got wasn't just a bottle of water. I like to use 1 gallon of water to come up with my "recipie" and then I can expand it out from there. 5ml should move the GH up on 20 gallons per the bottle. I added small amount of this to 1 gallon of water, then more, then more.... I got up to 100ml in 1 gallon of water and GH hadn't moved an inch! Let it sit over night. Nothing. Went so far as to buy a new test kit. Nothing. My take, don't waste your time.

I added the suggested amount for a water change the first time I used it, trusted it was what it said. This time I decided to check my levels on the new water to be sure it was where I wanted. No. Doubled the recommended amount. Still no GH registering. I quadruped it and still barely moved the needle. Luckily have another product that I know does the job. Returning this if I can.

Product was received open and partially used