Coral Plate Dying???

[bojyeo]

Hi All Bros,

My 3 coral plates (1 extremely very big) are very healthy for the past 2-3 weeks...........

Suddenly today, I saw my very big plate coral have a depleted patch with a narrow strip of slime coat on the depleted section (pic 26). My 2nd smaller coral plate also retracted badly (pic 27) while my 3rd unit seems perfectly ok.

Can any bro advise what's wrong? I did some checks and found 1 small yellow pointed boxfish dead in the sump. I heard that the dead boxfish do excrete poisonous toxins when dead? Is that the root cause? I have already removed it.

My specs is as follows : -

5 x 2.5 x 2.5 ft tank

PH : 8.2

KH : 250ppm

Nitrite : 0

Nitrate : 10ppm

SG : 1.022

Also based on the above specs, is it ok for the acropora to survive? I do notice one acropora has hairy strands on it while the other acropora has strands only on the purple tip.........

Thanks.......

[TayHongSiang]

Hi All Bros,

My 3 coral plates (1 extremely very big) are very healthy for the past 2-3 weeks...........

Suddenly today, I saw my very big plate coral have a depleted patch with a narrow strip of slime coat on the depleted section (pic 26). My 2nd smaller coral plate also retracted badly (pic 27) while my 3rd unit seems perfectly ok.

Can any bro advise what's wrong? I did some checks and found 1 small yellow pointed boxfish dead in the sump. I heard that the dead boxfish do excrete poisonous toxins when dead? Is that the root cause? I have already removed it.

My specs is as follows : -

5 x 2.5 x 2.5 ft tank

PH : 8.2

KH : 250ppm

Nitrite : 0

Nitrate : 10ppm

SG : 1.022

Also based on the above specs, is it ok for the acropora to survive? I do notice one acropora has hairy strands on it while the other acropora has strands only on the purple tip.........

Thanks.......

have to take them out and nurse them in yr sump or a separate tank for the time being. Dose amino acids n feed them with some chopped meaty prawn or fish, or henry's gourmet or other forms of coral foods for LPS, might help them to recover from tissue lost. u have to play doctor for a few weeks n hopefully, they will recover.

not too sure abt the acropora...hope some sps specialists here can help.

meanwhile, check yr water parameters.

[lcf425]

bro if you KH is 250ppm i doubt anything can survive in your tank =.=

[jamomatt]

250ppm = 12.5 dKh If I rem correctly, which is fine.

[bojyeo]

250ppm = 12.5 dKh If I rem correctly, which is fine.

Thank you to all bros for advice.

I am using API KH test kit for measuring. To be frank, I need to add 14 drops to the solution to get thee result and to all bros who are familiar to this kit, 14 drops is already off scale. The max nbr of drops is 11 drops based on the colour scale.

Any advice further?

[jamomatt]

High KH should be fine (any effect on other livestock?) if it is stable and your Calcium and Mag doesn't drop too low. If all parameters are fine, just follow what Ah Siang has said. If no sump or separate tank, just find a low flow area to nurse.

[bojyeo]

Thank you to all bros for advice.

I am using API KH test kit for measuring. To be frank, I need to add 14 drops to the solution to get thee result and to all bros who are familiar to this kit, 14 drops is already off scale. The max nbr of drops is 11 drops based on the colour scale.

Any advice further?

Another opposite strip across the plate also have this problem now........

[bojyeo]

My other tangs have been having ICH for some time.........a few have died so far including PBT today........parameters are ok so far.....

The plate (which is bigger than 2 palm size) are already on a flat LR on the sandbed which is extremely low flow.......I have sump tank but I thot Plates need lights? I did not install any ligts in the sump.......

[bojyeo]

and I read somewhere on the internet that KH has to be minimum 240ppm for reef tanks.........

[vinccc2009]

Make sure your ph and salinity is stable.

Pbt will get ick very easy if it is under stress, not so ideal water condition

[bojyeo]

Got some kits to test today........

Mg = 1125ppm

Ca = 360ppm

I have added Seachem Calcium Advantage to boost these 2 parameters......but the ICH is so tough...........

[vinccc2009]

Do regular wc.

Don't stress the fish too much. Be it by another fish or adding chemical...

Let it take it's natural course to fit into your tank environment.

In no time, it will be a beaut in your tank...

[icemamario]

ur tempe?

[bojyeo]

Mario,

25 Deg C from Artica chiller.........

[subxero]

Got some kits to test today........

Mg = 1125ppm

Ca = 360ppm

I have added Seachem Calcium Advantage to boost these 2 parameters......but the ICH is so tough...........

Calcium advantage is used to raise Ca, it does not really raise Mg, if any.