OneThunder
New member
my husband and I went to out to eat and this place had a saltwater tank visible from both sides (it divided the room) Inside there was live rock smack dab in the middle going all the way up. There was a canopy on the system. We pretty much determined that inside this "live rock" was the filter, as we could see no other in or out. I thought that was pretty cool, I asked about it but the wait staff had no idea about the tank, (I'm sure they didn't care either). Since then I have been looking around in stores and on t he net. Haven't been able to see any thing like it. Anyone know about this interesting filter?