Wayne Sallee wrote:
wrote on 11/16/2006 8:31 PM:
There is no need to keep doing water
changes. You'll want to reduce the PO4, but water changes are to
remove nitrates (which you have 0) and replace trace elements.
One should not have to do water changes to remove nitrates. There are
other things that water changes remove, like toxic chemicals that some
corals release, and for removing other possible unknown problems.
Wayne Sallee
Wayne's Pets
My nitrates are fine at 0...along with ammonia and nitrites - plus I
have lowered my Sg over the last 4 days to match the LFS levels....so
yes, I think it is some toxic chemical in there....and so will be
increasing the volume and frequency of my water changes....the GSP that
I returned to the LFS is still struggling with their Sg of 1.023 and
under halide lights, directly under the powerhead....so it has good
light and good water flow....it has to be said it is starting to recover
but not as quickly as they thought it would if it was just lights and
water flow....my pink star polyps have also given up....I checked my
tank diary and I did notice the original GSP did throw out some white
liquid into the tank - maybe there was a nasty in there....
So having ruled out the usual water quality parameters, the lighting
etc. then the only thing left is something toxic in the water.....I do
have some sort of red powdery stuff in there that stings my arms when
doing clean ups....maybe this is the cause.....I'm at a loss.....
So it is big water changes as per Wayne for me....in the hope that this
will make a difference....if it doesn't then I will need to stop keeping
Star Polyps as the rest of my corals are doing quite well (Mushrooms,
buttons, xenia and capnella)....but I really hate to admit defeat....
Gill