Dendrophyllia reproduction??

[naesco]

I doubt very much that there is anything positive out of the spewing of liquid by your dendros.
It more likely that the dendro reacted to the use of the strong additive and it most certainly will hasten your dendros demise.
I am surprised that you would still find a LFS who carries them as most respectable LFS would never sell dendros.
The chances of survival of dendros is next to nil. I have researched this coral and the only success is in a species tank with optimum conditions including vast quantities of phytoplankton to the point where the water is continuously green.

Please see the article by Bornemann, a noted author and expert in coral.
http://www.reefs.org/library/aquariu...96/1296_4.html

If your LFS did not tell you this, return the coral to your LFS for a full refund.