SunGrow Shrimp Mineral Rocks for Molting, Aquarium Calcium Supplement, 1.8-oz

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About This Item

Details

  • Packed with minerals and calcium, which help molting.
  • Perfect for soft water that may be lacking in minerals.
  • The rough-cut design will give your tank a natural and rustic look.
  • Every pack comes with mineral rocks (approximately 0.5-inches) surrounded by mineral powder.
  • One 50g pack is enough for a 14-gallon tank and can last up to 3 months.

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Questions & Answers

13 Customer Questions

I have a 20 gallon with a Betta, 2 snails and 5 Cory's. Is this safe for a tropical community aquarium?

Answer by Chewy • Oct 15, 2019
SunGrow Natural Aquarium Mineral Rocks maintain the health and vibrancy of your aquarium and underwater buddies and is ideal for soft water.

If building a vivarium can I use this in the water part that my lizard will be drinking from?

Answer by Chewy • Oct 04, 2019
These mineral rocks are intended for crustaceans and shelled aquatic animals, and they may expose reptiles to too much magnesium.

Can these be used to raise the pH of my freshwater tank?

Answer by Chewy • Nov 29, 2020
The mineral rocks have calcium and magnesium, these can be used to increase pH in freshwater tanks.

safe for saltwater tanks?

Answer by Chewy • Nov 19, 2019
These mineral rocks are safe for use in both freshwater and saltwater aquariums.
Reviews
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4.6
Rated 4.6 out of 5 stars
74 Ratings
Terms & Conditions

21 Customer Reviews

Rated 5 out of 5 stars
By Mary on Dec 14, 2025

Shrimp health

Essential for molting and health of my shrimps. Increases the KH level of the tank gradually.

Essential for molting and health of my shrimps. Increases the KH level of the tank gradually.

Rated 1 out of 5 stars
By Richard on Oct 29, 2025

Gimmick.

imo, 100% useless. Amano Shrimp couldn't have cared less.

imo, 100% useless. Amano Shrimp couldn't have cared less.

Rated 1 out of 5 stars
By Editha on Jul 16, 2025

It doesn't work

I dont think this product work at all. My shrimp and snails doesn't care for it and it doesn't affect my water. I had to add an additional calcium in my tank

I dont think this product work at all. My shrimp and snails doesn't care for it and it doesn't affect my water. I had to add an additional calcium in my tank

Rated 5 out of 5 stars
By Brooklyn on Sep 4, 2025

Shrimp like it

My neo's and caridinia both like these mineral rocks, they have had good successful molts too

My neo's and caridinia both like these mineral rocks, they have had good successful molts too

Rated 5 out of 5 stars
By Lavida on Jul 12, 2025

My shrimp like them

Since putting these little rocks in my aquarium, my little shrimp seem to be sitting on them all the time. I would say they're very happy with them

Since putting these little rocks in my aquarium, my little shrimp seem to be sitting on them all the time. I would say they're very happy with them

Rated 4 out of 5 stars
By Anabrenda on May 8, 2025

Picky shrimp/snails

I must have picky shrimp and mystery snails. No one has touched the mineral rocks in two months. Hasn’t gone down in size. However, looks great at the bottom of

I must have picky shrimp and mystery snails. No one has touched the mineral rocks in two months. Hasn’t gone down in size. However, looks great at the bottom of the tank. Will take it out and throw in a pond for someone else to enjoy :)

Rated 5 out of 5 stars
By Lisa on Feb 16, 2025

These rocks are great for ANY Aquarium, shrimp or no shrimp

I decided to add some shrimp to our current aquarium since our fish are non-aggressive. Before I got the shrimp, I ordered these rocks and dropped only two into

I decided to add some shrimp to our current aquarium since our fish are non-aggressive. Before I got the shrimp, I ordered these rocks and dropped only two into my 20 gallon tank. It took a few weeks but wow has the color and clearness of the tank improved immensely.

Rated 5 out of 5 stars
By Karyn on Jun 8, 2025

Excellent quality

This works really really well for my cherry shrimp. They love it!

This works really really well for my cherry shrimp. They love it!

Rated 5 out of 5 stars
By Bree on Dec 22, 2024

Didn’t know about these before

I was looking on here for mystery snail food and these rocks popped up. I purchased them in a whim and everyone seems to like them. Shrimp hit them real quick, snails

I was looking on here for mystery snail food and these rocks popped up. I purchased them in a whim and everyone seems to like them. Shrimp hit them real quick, snails have been grazing. If there was any deficiencies in the tank, I hope this helps.

Rated 5 out of 5 stars
By Chris on Sep 5, 2024

Brings all the inverts to the yard

Everybody likes to stand on these and pick at them, the shrimps, the snails, I even find the plecos on them sometimes.

Everybody likes to stand on these and pick at them, the shrimps, the snails, I even find the plecos on them sometimes.