Help, my SPS polyps arent extending any more

[snaza]

Not sure why but some of my SPS arent extending their polyps anymore. most of them still have good PE but 3 or 4 have just stopped in the last few days. colour is fine and they look healthy. These specific SPS normally show great PE. any ideas?

nothing has changed and all water parameters are good.

thanks

Aaron

[toothman]

Almost the best cure for all water issues are a water change. Check your make up water to make sure it starts at 0.0ppm. Even if your phosphate, nitrate, ca, kh, mg are in line any tank will benefit from a water change.

[60Cubed]

Also look at the corals very well to make sure you have no pest. Redbugs and AEFW can cause poor polyp extension. Redbugs irritate the coral AEFW will kill it!

[snaza]

ok thanks, ill do both

[boogaman]

That's what happend to me as well, and I found redbugs on them.

[snaza]

how big are redbugs and what do they look like?

[boogaman]

http://reefcentral.com/forums/showthread.php?s=&threadid=903839

If you find out you have them read this post on how to kill them.
http://www.melevsreef.com/redbugs.html




Gavin

[flyyyguy]

not very big at all.

once you train your eyes to see them...you can spot them easily, but until then, you can be looking right at them and not know they are there

http://i64.photobucket.com/albums/h181/flyyyguy/lifts/redbug.jpg

[snaza]

The corals that seem to be affected the most are my poccilapora. i cant see any pest at all

[snaza]

Some of these SPS have started to RTN now )-;
I cant see any pests. i looked very close. i need to do a water change asap