Rbta crisis!

[petedunk]

Hi all, help is needed plz!

I currently am running a 14g Biocube that has been set up for 11 months. Everything has been doing fantastic, coral and fish alike. However, in the last 2 weeks my RBTA and GBTA have gone south! I've had my RBTA since August and it was doing great. About a month ago I added a small GBTA. As mentioned, both have shrunk considerably in the past 2 weeks. What's perplexing is that my parameters, salinity, temp., etc are perfect and ALL my other livestock are thriving, SPS included! I do a 15% water change every week and keep the nems under a Kessil 150 watt LED lamp. Currently, both seemed to have found comfortable nooks in the LR but are still in rough shape. What's more, it seems as if they are actively avoiding all light; open when I turn the lights on in the am but retreat into the rock during the day. They also have lost quite a bit of color and lack robustness in the arms, many of which have shrunk considerably. They also have a difficult time taking/holding on to mysis shrimp when I attempt to feed them. Can anyone share some much needed advice? Thanks!

Livestock:
-Pair of clowns
-Royal Gramma
-Green Slimer Frag
-Birdsnest
-Monti cup
-Star polyps
-Various zoos and shrooms

 

[TigeBell]

do you have any active carbon in the tank? I think the BTA's are fighting chemically with each other. The carbon will help to remove the toxins from the water.

 

[RickReef28]

+1 to the above. had the same thing happen to me. I added GAC to my sump and things went back to normal. make sure they are not too close to one another (if you can i know they roam and hard to control but they shouldnt roam if they are happy)

 

[petedunk]

do you have any active carbon in the tank? I think the BTA's are fighting chemically with each other. The carbon will help to remove the toxins from the water.

I actually just put carbon media in the back of my biocube. How long should I keep it back there? Thanks!

 

[petedunk]

+1 to the above. had the same thing happen to me. I added GAC to my sump and things went back to normal. make sure they are not too close to one another (if you can i know they roam and hard to control but they shouldnt roam if they are happy)

They have since setteled in their respective nooks, still in rough shape though. Again, oddly enough, when I went to turn the tank light on my RBTA was wide open and immediately shrunk up when the lights came on. Thanks for the advice guys!

 

[kretzkiller]

How long have you had the led? Maybe it's too strong for your nem.

 

[Dmoody]

ye 150 watts in that tiny biocube. Those kessils are power houses.