Weco Wonder Shell Natural Minerals (3 Pack), Small

Without testing water you can see them activating in the water when they create a lot of micro bubbles. Water that has been tested with a high PH or high acidity >7.3 in a 30gl tank can read lower in the 7.0-7.1 after just a day. As the tank stabilizes the activation is lower (seen by the amount of bubble activity). They work very good in a tank that is dedicated to Pink/Pearl ramshorn snails. A very large Goldfish and Blue Shusui Butterfly Koi seem to do well with the additional minerals in the water. I have used them since 2019 on a bi-weekly single piece (dose) application in the 30gl tank. These come 3 in a pack and seem to be a good value and easy to use compared to liquid type water adjusters purchased from your normal pet stores. If your tank is cloudy (Acid level) these can help stabalize it along with a proper water change / filter care.

These keep my cherry shrimp happy and healthy. I have crappy city water and this puts the minerals back in so my shrimp can properly molt. They last a long time in my 3 gallon tank, and this pack lasted me quite a few months.

I saw a pretty immediate change in my nerite snails after adding one of these to my 5 gallon tank. They hadn’t been eating very much before, and now they’re back to keeping the algae at bay. I also noticed that the water was much clearer!

Could not use because my GH was already high naturally, and didn’t want to risk increasing my GH with this wonder shell, but the short amount of time the product was in my 10 gallon tank the shrimp bolted to this thing like magnets. I guess they are missing out on the calcium in their diet so I ordered a different brand of calcium supplement that won’t raise the GH like wonder shell does. Great for tanks with low GH! Unfortunately just didn’t work for me.

These are my favorite source of calcium for my aquatic snails. They dissolve and don't leave a mess, and they keep my snails shells strong. It doesn't cause any cloudiness or anything, only slightly adjusts the water to grow stronger snails and shrimp.

I felt like these were great, especially for my freshwater snails. I noticed their shells didn’t have lots of cracks like they did before and were looking healthier! These didn’t impact my fish’s health at all. They are the perfect size for a 5 gallon tank, and you get 3. They do only last for maybe 1-2 weeks, but considering their value, you can’t go wrong. I would definitely repurchase!

Do not buy if you have well water it makes the water super cloudy I'm sure it's a good product I don't want to give it a bad review it was my fault I should have investigated more but just to save someone else the pain

good. my snails love it

These things are amazing, ive purchases them 4 times now, massive help with raising general hardness in my axolotl tank

I watched a review and saw these and wanted to give them a try as I have Mystery snails! does not seem to bother the fish and my tanks are crystal clear.

Great 👍