Review on 🐠 CerMedia MarinePure Block Bio-Filter Media: Ideal for Marine and Freshwater Aquariums, 8x8x4-Inch by Richard Stewart

I bought a large stone because I have been using MarinePure for years. I have used 3 cu ft of this in my carp pond shower and also in some freshwater setups. I ordered this for my reef tank and as expected it is a good choice for biological filtration. Due to its porous construction, it gets the job done but can't take the rough handling. My brick broke in half. It doesn't look very good, but it hasn't lost its function. I would buy this again and again in figure sets without a single issue.