- U.S. Silica Mystic White II Swimming Pool Filter Sand, 50 lb Bag | Silica Sand for Above Ground & Inground Pool Filter Pumps, Swimming Pool System Cleaning & Maintenance Supplies

The best sand for aquariums! I bought the other more expensive brands, and one of them was so dusty in the tank that it never cleared up in a month, and I pulled it out and tossed it, and put this in! Then I put this sand in all of my tanks. I've used gravel for 30 years of fishkeeping, but switching to sand has given me new stuff to learn and makes lots of fish happier! My African cichlids spit this stuff at each other! I rinsed it thoroughly, but found little debris and it sinks and stays there, not dusting the aquarium! The color is the same white/beige color of the sand in the small bags, only this stuff costs 1/4 as much! I was hesistant to try it, but the facebook fish groups all said to try this and I'm glad that I did!

Best sand ever

Update- 8/18/25- I wound up replacing the Bestway pump with another brand with a stronger pump and greater GPM flow rate after it crapped out on me. I stuck with this sand and it cleared the algae that had built up after a big storm within hours! This sand is still a winner and well worth the price since I’m not spending it on pool chemicals anymore! It’s a time saver and gives you more time to actually enjoy your pool! I had replaced the sand in my filter twice and the beginning of the summer after taking the whole system apart to flush it. I bought this brand as my last hope before having to purchase a new pump and quickly figured out it wasn't the pump, it was the other so called quality filter sand that was garbage! It cleared the algae bloom within 24 hours in my 6000 gallon above ground salt water pool. No more worrying about the pump burning up and it has been working very nicely with my salt water chlorinator after using this medium. I haven’t had to change the sand since putting this brand in and the pool remains sparkling clean! Seriously- spend the money to avoid the hassle of trying to correct a green or black algae bloom, it’s worth it in the long run!

Inexpensive and effective

OMG, I should have long ago did a Review on this PERFECT SAND !! It is exactly that - Perfect !! Love this sand and I'm soon to buy more. I hope they stay in business, because they actually have the best White Sand in the whole wide world, and the cost is reasonable. Thanks for having such an excellent product.

Purchased for use in aquarium. Sand is not pure white, kinda off white with some black grains in it. Definitely need to wash or rinse before use as it has lots of dust to it. Other then that it’s good sand for the price.

I’ve used a few types of filter sand over the years, and Mystic White II stands out. After switching to this sand, my pool water looked noticeably clearer within just a day. It works great with my above-ground pool filter pump and keeps debris and fine particles under control. The sand is clean, uniform, and flows well through the system without clogging. It’s also easy to pour and manage during maintenance. Definitely a must-have for anyone serious about keeping their pool sparkling and low-maintenance all summer long.

If you can get over the fact you're having a 50lb bag of sand shipped from who knows where, its great. Better than driving into town an hour and a half away and spending half a day and half a tank of gas on. This is the epitome of everything that's right and wrong with Amazon. But hey, your pool or spa will be crystal clear!

Arrives right at your door. Have bought a few times. Keeps pool very clean. High quality!

Exactly what pool needed. Easy to use and works

Le sables blanc très efficace pour le filtreur l'eau de la piscine est claire merci

Really nice sand for your pool pump 1 bag worked fantastic for my pool pump.

Used for my sand filter for my pool. Seems to be good so far