Poor polyp expansion

[Jaycen B.]

I have an acro with poor to no polyp expansion. I also have others that seem to be ok cant figure this one out can some one give me some insight on what might be going on. It has bee this way for about 2 weeks and I have had it for about 2 years.

Prams 4/19
kh=8
cal=420
po4=0
no3=0
API tests new 2/1/10
mag=1320
red sea
Ph=8.2@5:00pm
Hanna

 

[Jaycen B.]

PIC

 

[JMalone81]

Is that coral bleached?Have you seen any AEFW or red bugs?

 

[Jaycen B.]

Not yet!

 

[JMalone81]

What lights do you run? Are the bulbs old?

 

[Jaycen B.]

What lights do you run? Are the bulbs old?

400W MH, bulbs are 3 months old.

 

[JMalone81]

What size tank do you have? How deep is it? Where is the coral at in the tank? What do you have for flow? Sorry for all the question just trying to help.

 

[JMalone81]

Also how long are you're lights on for a day?

 

[Jaycen B.]

2 400w MH+ 4 t5s soon to be a 250 MH , low in the tank, med flow, 210, no direct flow.

Lights on for 7 hours.

 

[Jaycen B.]

I will retire for the evening any constructive info will be appreciated.

 

[JMalone81]

What fish do you have? Do they nip at the corals?

 

[dan223]

No PE when params are good, could be red bugs. Have you looked at the coral under magnification or with a macro lens? red bugs are very hard to see even whey your looking for them with a lens.

 

[JMalone81]

That's kind of what I was thinking but I wanted to find out more about the tank.

 

[Grant W]

Do you feed your corals at all?

 

[berlin-riff]

Hey it looks like the Acropora flat worm
http://www.meerwasser-lexikon.de/tiere/953_Turbellaria_sp..htm

damn parasit...

 

[Jaycen B.]

I have never seen any fish nip at the corals in my tank. All other corals look ok I will double check for red bugs and flat worms but do not think that is the problem. Thanks for the help.

This acro has been here before and recovered so maybe I'll get luckey.

 

[Jaycen B.]

Well not so luckey.

OK bad news I am 85% sure it is red bugs. I can't see any on the coral in ? but I can see small orange pods on another acro frag, so what next. Do I take all acros out for a dip or what? Is Interceptor the only way to get rid of them?

I need a course of action thanks.

 

[saltcrazy]

i had the same prob, bought a halichoeres melanurus wrasse, pest eating machine all day long, acros back to good health, and the good part is, the wrasse looks great in the tank. find a wrasse you like, do some research as to its appetite and give it a shot.

 

[Jaycen B.]

I have 2 wrasse 6 line and yellow coris. This problem may be at critical mass. I hope not.:sad2:

I have Several sps this is the only one not doing good at this point.

 

[JMalone81]

i had the same prob, bought a halichoeres melanurus wrasse, pest eating machine all day long, acros back to good health, and the good part is, the wrasse looks great in the tank. find a wrasse you like, do some research as to its appetite and give it a shot.

The halichoeres melanurus wrasse will eat flat worms but will it eat red bugs? I don't know anything about treating red bugs sorry.