Bio Filter Media

Not a single piece arrived broken. It is exactly as seller described. Very impressed that none were broke. I would highly recommend

All I can say is this is a good product and a great co to work with. Because when I want to include the only reason why there was a few pieces were broken My comment keeps getting denied. So you can’t read it. So now the reviews are exactly what they want you to see. Again productcand co is great. Will buy from them again.

Used for on month aquarium tank . It work as it should .

I bought these for my. 300 gal garden pond. Packing did its job, none were cracked or broken. I’ve tried various types of media. Like this style the best: it’s large surface is easy to pack /organize in my bio filter, theses tons of surface area for the bio bugs to take up residence, can be broken to fit if needed. I’ll never buy the little style media again. Decent price for the quality. Highly recommend

I use these in my pond filter. I don’t think they did very good so I had to take them out

I had been struggling building the biological media in my DIY trickle filter for my koi pond. After adding these blocks it went very quickly. They are amazing!

Can I write a negative star review? Buy these if you want your fish to die! Have a 120g planted tank. Bought these to eventually replace my K1 bio filter media. Added the bricks to my sump vertically for max water flow to start building bacteria. Within 24 hours, I had a massive die off of fish. Lost about 20% of my population the second night they were in the tank, then every night, lost more fish. After a week, I had lost about 50% of my fish population. None of my fish showed any signs prior to adding these bricks. Did 20% water changes every other day while the bricks were in the sump, nothing helped. All my parameters tested perfect. After a week, I removed the bricks, did a 50% water change, and that stopped the die off. Have only lost 2 fish since I removed them 2ish months ago. I emailed the company, and never got a reply, not surprised. I will never buy another Hygger product again.

Bought these bio bricks for a custom 40 gallon sump that I was building wanted something that was easy to install and clean great value for the money buying in bulk definitely had more than I needed. The bricks are very functional and easy to stack instead of other types of media.