HelloReef Felt Filter Sock Rated for Medium Tanks All necessary organic nutrients and

All necessary organic nutrients and organically-bound trace elements for  growth

- Production of food supplement for fish

1mL per Gallon --> 10ppm increases

For these reasons

substrate bed)

HelloReef Felt Filter Sock Rated for Medium Tanks All necessary organic nutrients andDesigned to fit the HelloReef 15 Gallon Aquarium 2. 7" 225 Micron Felt Filter Sock Filter socks act as mechanical filters, trapping detritus, uneaten food, and other particulates, preventing them from decomposing in the water. Regularly changing these socks ensures a cleaner, healthier environment for the aquarium's inhabitants, contributing to better water clarity and overall tank stability. This sock is a direct replacement for the one included in