Flame angel... I give up...

[reefwars]

How about coral placement , liverock etc.

Is an empty 150g any better than one filled with rocks? If so how much worse is one that is only partially filled with rocks

I think a dimensions of tank , equipment rating and individual fish assessment is a much better way to determine if you have too many fish or not , not just gallon numbers which have little information unless we're dealing in ppm.

Is a circle any better than a triangle or a deep cube to a rectangle?

I also assume we're only talking about display size correct not total volume , so if a fish had a tunnel to. Swim to another tank do we count it s two 150g and treat as individuals or do we count it as 300g and treat as a 300g?