We will be setting up an eel tank in the near future. Size has not been finalized, but most likely a 120 cube. Here is my question. I do not want to have a bunch of rock in the tank, as I want to be able to see the eels. We will have probably, a couple boulders and a slab across the top, just to give them something to hide around. As heavy a bioload that these guys produce, will I be better off with mechanical filtration, or still a sump with liverock in it.?(would be a heck of a lot of rock in the sump)
Help me toss this around a bit
Help me toss this around a bit