crister13
Aquarium Advice Addict
I was thinking about getting this block of marinepure from bulk reef supply. They're supposed to work really week and boost biological filtration (aerobic and anaerobic bacteria). People have said they dropped nitrates from 100 to 2 over a couple months. Any thoughts???? http://www.bulkreefsupply.com/store/marine-pure-ceramic-biomedia-8x8x4-block.html