Acropora skelton

[baruchbl]

when i cut a piece from an Acropora coral that grow in my tank it is very easy (the skelton is soft), but when i cut a piece from an Acropora that came from the wild the skelton is much more hardier.
My question is why? What is missing in the water in my tank?

 

[RichConley]

generally weak acro skeletons is indicitive of low flow. They tend to have heavier thicker skeletons in higher flow environments.

 

[Ti]

how soft was it?

 

[baruchbl]

I cut a frag with my finger it was very easy.

 

[twon8]

what rich said, low flow=thin skeleton, because the coral doesnt' need a really strong skeleton to put up with the reduced flow.

 

[Stoney Mahony]

what twon8 and rich said

 

[Ti]

break with ur fingers or cut with your fingers?