Originally Posted by mr_X
For an sps
tank you can have plenty of chaotic flow, but many lps
, like for instance bubble coral, frogspawn, hammer etc, will not tolerate high flow. So, for a mixed reef, I'd say placement is extremely important if you want to turn the vortechs all the way up.
Not only that but sporadic blasts of water will be tolerated by sps
, but definitely not a constant pounding.
You'd be surprised at how much flow a mature euphyllia can withstand. Once they have about 6 heads they grow tightly together so they can support each other. They also inflate themselves depending on the direction of flow and how much they're getting. Most corals will adapt.
In terms of aquarium flow it may be true euphyllia can be placed incorrectly, but overall they should still get good flow. As long as you're not blasting a single or 2 headed euphyllia they will begin to grow their skeleton to support the flow accordingly.
My 20gal is mostly LPS
and they have all grown to support the higher flows. Now they hardly move.
Even soft corals will grow to support the water flow their receiving.
And you could easily grow many SPS
skeletons strong and sturdy to the point they could receive direct pounding of water flow. It's not typically most fragmented pieces are not used to this pounding but can completely grow the be able to.
As your coral reefs begin to encrust and grow you should consider adding more flow as well. As there is more coral there is more of a need to have water flow bringing the elements to them and around/past them.