How empty is your tank?

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Is your current tank stocked to the brim with coral, or do you have room for new pieces? Do you always try to leave a little wiggle room between your colonies or do you like the more natural reef look of having them grow edge to edge? I personally like to leave a little wiggle room between my big colonies and always have a empty rock or sand section for something new that catches my eye.

 

[Saltyreef]

Completely empty other than a small colony of kenya tree, a frag of lakers zoas and some gonzos mushrooms that survived a dry rock startup and being used to judge maturity of the microbiome.
Also 6 fish who would survive a nuclear blast lol.