SPS and flow

[Aquattro]

Rich, yes, with stronger flow I find they encrust more, and grow in girth before height to build strength to withstand the force of the water. Without this force, they tend to grow up more, but thinner and less dense skeletal structure.

Perfect example is buying a wild A. humilis colony, with short stubby branches. Once placed in a tank with less than strong flow, the branches taper and grow longer.