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Description
Papua Rainbow Fish Melanotaenia Papuae 5cmPapua Rainbow Fish Melanotaenia Papuae Natural Range: Around Port Moresby, Papua New Guinea Max Size: Not known currently, but reports online say about 2. 5", making this a possible "dwarf" species. Overview: Peaceful, active fish. Rainbowfish are generally hardy and easy to care for. Rainbowfish are truly unique in that the males of most species have a bright iridescent strip running from the top of the mouth up over the ridge of the back and
Papua Rainbow Fish Melanotaenia PapuaeNatural Range: Around Port Moresby, Papua New Guinea
Max Size: Not known currently, but reports online say about 2.5", making this a possible "dwarf" species.
Overview: Peaceful, active fish. Rainbowfish are generally hardy and easy to care for. Rainbowfish are truly unique in that the males of most species have a bright iridescent strip running from the top of the mouth up over the ridge of the back and continuing to the dorsal fin. Males frequently "flash" this bright strip on-and-off in absolutely stunning displays. When they flash, it looks like a neon light is being turned on and off. This, combined with the amazing coloration of many species, is something truly special that is not to be missed. Fortunately, these fish display and flash frequently.
Setup Considerations: Most rainbows of the Melanotaenia, Glossolepis, and Chilatherina genre grow to 5" - 6," maybe even more on the largest species. Many people successfully keep rainbows in tanks that are around 3 feet long...it can be done. However, these fish are rapid swimmers and do best in a tank that is at least 4 feet long (the length of a standard 55 gallon aquarium). If your tank is smaller, we would recommend sticking to the few species which top out at around 3" or less. Alternatively, looking into the closely related Pseudomugil genus (commonly called Blue Eyes) might yield the perfect species for a small aquarium.
Specific Care Requirements: They can jump, so a lid is highly recommended.
Diet: Rainbowfish are easy to feed. They are not picky and will greedily and rapidly eat most standard aquarium foods. However, they can develop problems when fed large, hard food. So, we find it best to feed "soft" foods like flakes, frozen foods, Repashy, and the like. If pellets are fed, they should be very small or softened by being soaked in water before they are fed.
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4.5 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 4
Liked it a lot
Flavor Name: Unflavored, Size: 8 Ounce (Pack of 1)
Great product.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Great product
Flavor Name: Unflavored, Size: 4 Fl Oz (Pack of 1)
Product is easy to use. Started out slow as it recommends. It never caused upset stomach. I use it daily in my first water of the day. There is no flavor to it nor smell. I recommend this product.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Add the right amount
Flavor Name: Unflavored, Size: 8 Ounce (Pack of 1)
Previous reviewers are adding too much of Concentrace to filtered water. Add only about 20 drops in a gallon of Zero Water filtered water.
This will bring the TDS (total dissolved solid) from 0, after using the Zero Water pitcher, which is basically distilled water, to about 110 TDS an ideal level.
This doesn't mean that this will replace all of your daily mineral needs because water alone is not designed to do this. You will get the rest of the needed minerals from food and any supplements that you may take.
You may also want to consider using a LifeStraw pitcher after filtering with the Zero Water pitcher. Because the Zero Water will remove all dissolved solid including some bacteria, PFAS, and microplastics. But LifeStraw will remove most of the microplastics, DBPs, VOCs, PFAS and pharmaceuticals.
One long filter in the Life Straw pitcher will last over a year since you're already using filtered water, but the round filter would need more frequent replacement - it has 2 parts. You must use both filters in the Life Straw pitcher, even after using the Zero Water pitcher.
There's a new documentary special on Netflix (May/'26) on microplastics and its dangers that everyone should see. Extremely informative.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
I'd give them 20 stars if I could
Flavor Name: Unflavored, Size: 8 Ounce (Pack of 1)
I'd give it 20 stars if I could.
I thought I was really healthy. I work out, eat organic, drink RO water, take vitamins/glandulars and this last month something was really wrong.
I was having panic attacks so frequently and strongly I began finding reasons to not leave the house.
I was wondering if I were starting to have a deeper health issue and I began taking these not really thinking they'd do very much.
BOY WAS I WRONG.
I legit feel like I have my life back.
Anxiety gone.
Panic attacks disappeared.
Deeper quality of sleep (still working on length).
My eye sight feels sharper.
I feel happier.
I'm back to the "old me" that I didn't really know was gone in the first place.
Nothing else has changed in my life. It's THIS. I've told my closest friends and boyfriend about this because apparently my body is stripped of minerals and it was trying to get my attention.
I can't rave about this product enough.
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Reviewed in the United States on April 3, 2026
★★★★★ 5
A Game-Changer for Daily Vitality
Flavor Name: Unflavored, Size: 2 Fl Oz (Pack of 1)
Switching to a liquid formula has completely transformed my morning routine. I noticed a significant boost in my energy levels almost immediately, likely because the absorption feels so much more efficient than traditional pills. The taste is surprisingly pleasant, making it easy to stay consistent, and I love the peace of mind that comes with getting a comprehensive blend of essential nutrients in one simple dose. It is a fantastic option for anyone looking to support their overall wellness without the hassle of swallowing oversized capsules.
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Reviewed in the United States on March 31, 2026