sps placement near water surface

[wa_lanz]

have seen many with sps near the water suface...

wont the water level go down and expose the sps to air during water changes??

will it affect the sps?? TIA

[minsmarine]

near to surface but below overflow mark.

so no expose to air.

[Jun Hong]

I think in nature, some SPS do expose to air during low tide.

So you may just mimic the natural environment during water change

[wa_lanz]

wat i meant is during water changes.. waters sure to be very low mahz..

don wish to lose any corals becoz of this.... anyone can advise??

[typrobin]

hhhmmm...i think most reefers should have sumps tat are big enough for at least a 20% water change without affecting the main tank's height...

as minsmarine mentioned, anything below the overflow teeth should be safe..maybe try to do quickie loh..switch off the MH and other lights before changing water..if u notice, i think someone posted b4 that he left his sps unattented for more than 1/2hr because he was applying epoxy and forgot to put it back..but the sps still ok...

[Jackson6745]

When I do water changes 1/3 of my acros are exposed to the air. After I'm done I do notice that all the exposed corals mucus, but in 30mins - 1hr all SPS look normal again with normal polyp extension. I have not lost any corals to this but I would also like to know if air exposure can damage SPS.

[wa_lanz]

lol... forgot new setup got sump.... current tank dun have la haha... cant wait.. tank coming later... initial one got a long scratch so tankmaker replace new one FOC... but waited one whole week.. sianz..

[FuEl]

I've had sps exposed to air for about 5-6 hours with no problems. Main thing is to keep them moist. So during water change just splash them with seawater whenever you feel like like they are drying out. Turn off your lights to prevent them from being baked.