Originally Posted by Andy Sager
was this a sponge from the pet department or one from the house cleaning department?
I am not sure what department it came from, but I assume pet because of the brand name called. AquaClear Foam Filter Inserts, 3 Pack – Replacement Mechanical and Biological Filter Media for 70 Gallon Tanks.
It says on amazon..Versatile: This filter media is suitable for freshwater and saltwater aquariums. Replace monthly for best results.
Do I just change 1 sponge from one filter, or 2 sponges once a month? I do not want to disrupt the cycle.