Suitable For Freshwater Tropical, Cold Water & Marine Aquarium Tanks and This Provide a Very Healthy Environment For Plant & Fishes.
Also, Work as a Good Biological Filter Because Most of The Healthy Bacteria Grow Between Them.
Empty the sand in a bucket and wash till all the dirt is out. Then put in aquarium.
Important Part of Aquarium Because They Keep Water Fresh & Healthy Long and Long Time By Absorbing All The Waste.
They keep water fresh and healthy long and long time by absorbing all the waste.,wash it 2 or 3 times with water and left it for atleast 1 day to dry so it's easy for you to do decor with it.