I know. I'm having to decided between biotopes. And I think I might go with a South/CentralAmerican/Riverine and Lake Victorian Cichlid tank, largely BECAUSE of my African Featherfin..I don't think he'll dig the lace rock. I have some absolutely beautiful formations of it, too, so it sucks, but..I don't want it to scratch him up.Luniyn said:One thing to note, if lace rock is really like lava rock it will be very coarse. Catfish or fish that like to dig might be really turned off by a lace substrate. I removed a fake coral from my tank because some food got stuck under one of its "arms" and my cory cats went for it and scratched up their backs. Removed it the very next day.