My female nic and I had a running battle over this very thing. During the course of a day, she'd build up a 5-6" pile of sand, and a corresponding pit 1-2" deep. I'd smooth it all out. She'd build it again the next day. At least we both had something to do in our spare time!Behemoth;1360999; said:I am very new to cichlids. I have a Nicaraguense that is probably at the 6"-7" mark. It is taking gravel in it's mouth and stacking it in the corner of my aquarium. It's very diligent about its business. What and why??![]()

She just moved it around. As to aggression, my female was always the largest fish and I eventually had to get rid of her because she harassed my sev and firemouth until they got fin rot (twice each). I know people say nics are relatively laid back, but mine really wasn't. I suspect that if she hadn't been queen of the tank, she'd have been ok. My sev, for example, is now boss of the tank, but doesn't feel he has to chase everyone around to prove it.titansfever83;1366348; said:Do they sift it like eartheaters or just pick it up and move it? What is the aggression level of Nics. I've never owned any before and I'm picking up a pair of em tomorrow.