Probably a silly question, but here it goes: I have a rock I'm trying to cover in zoo's. I've placed the frags on it, spacing them apart. When they grow off onto the rock and fill it in, will there be warfare....or do zoo's get along with each other? I still struggle with placement of things...ie distance apart. The second question is: I've allowed the coraline algae to cover the back wall and two sides, but am now thinking I want the one side open for viewing. Is there any reason I shouldn't scrape it off all at once? I don't think there is.
Thanks
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