DreamAngel
New member
Hi, Randy:
I have gotten this info from Anthony Calfo on another board.
"a fav trick of mine for removing macro organisms such as worms, crabs, mantis, etc is to make a solution of magnesium chloride (not sodium chloride) mixed up to the same specific gravity as NSW (say... 1.024ish)
Dip the rocks in this saltwater bath and watch the motile organisms exit rather promtly.
For fish-only use display live rock, it accomplishes the goal of removing most if not all potential problem creatures such as parasitic isopods and mantis (stomatopods), as well as pests like the polychaetes you are hunting in this case.
It does little to no harm to ther majoy benthic growth forms for the short duration and after a good rinse.
I heard the trick from a chap at SeaWorld FL who does this to prepare LR for use in their fish only displays.
Anthony Calfo"
I have had no luck catching three crabs in my tank, at least one of them was destroying my zoos and ricordia, and I saw another one attacking the snail the other day. So I really wanted to give this method a try.
Although Anthony suggested using magnesium chloride, not Epsom Salt (Magnesium sulfate), since I don't have any MagCl on hand, and they are difficult to locate in So. California, can I use Epsom Salt instead? Will it achieve the same effect? Will there be any negative impacts on the tank? Will the rocks need to be rinsed in saltwater or freshwater afterwards?
Thank you for your help.
I have gotten this info from Anthony Calfo on another board.
"a fav trick of mine for removing macro organisms such as worms, crabs, mantis, etc is to make a solution of magnesium chloride (not sodium chloride) mixed up to the same specific gravity as NSW (say... 1.024ish)
Dip the rocks in this saltwater bath and watch the motile organisms exit rather promtly.
For fish-only use display live rock, it accomplishes the goal of removing most if not all potential problem creatures such as parasitic isopods and mantis (stomatopods), as well as pests like the polychaetes you are hunting in this case.
It does little to no harm to ther majoy benthic growth forms for the short duration and after a good rinse.
I heard the trick from a chap at SeaWorld FL who does this to prepare LR for use in their fish only displays.
Anthony Calfo"
I have had no luck catching three crabs in my tank, at least one of them was destroying my zoos and ricordia, and I saw another one attacking the snail the other day. So I really wanted to give this method a try.
Although Anthony suggested using magnesium chloride, not Epsom Salt (Magnesium sulfate), since I don't have any MagCl on hand, and they are difficult to locate in So. California, can I use Epsom Salt instead? Will it achieve the same effect? Will there be any negative impacts on the tank? Will the rocks need to be rinsed in saltwater or freshwater afterwards?
Thank you for your help.
). 
