Something irritating my corals

Staisman

New member
I have mixed tank with Zhoas (green and brown) ricordias(6), mushrooms (4), two different torches, one hammer head, acropora with montipora and recently I bot RBTA. So every time I come home after work my Hammerhead, torches and new RBTA are irritated and deflated showing their skeletons. It happens around the same time every day. During the day all my corals are looking good. So I am trying to figure this out what would upset my corals?

My NItrates are 2-5
Nitrites - 0
Calcium - 450
Alk - 9.1 dKh
Magn - 1350 -1450

I am running BML lighting two strips, superActinic and Full spectrum from 9am -9 pm, maybe too much light and they got tired at the end of the day?


Here is some pics during the day and the time when they upset.
RBTA
new1.jpg


ZHOA GREEN
new11.jpg


BROWN
new7.jpg


Hammer
new16.jpg


And here what happens
1.jpg

2.jpg


Any ideas??? It happens around 6-8 pm... Next morning they are thriving again. :headwally:
 
Last edited:
This may be a stupid question, but have you checked your temperature? It could be getting too hot during those times. I would also check the heater to make sure it is not kicking into high gear during those times.
 
This may be a stupid question, but have you checked your temperature? It could be getting too hot during those times. I would also check the heater to make sure it is not kicking into high gear during those times.

Temperature is always 79-80 and if it would fail it would do it at different time. This happens every night between 7-9 pm. I am thinking that my Zhoas would secret something that irritates my other corals. Is it possible?
 
Could be a reaction to the lights? When do you put your day lights off?

Well I have a controller so I start my lights from 10% in the morning then at 2pm -4pm they are at 100% and then goes down to 10% and off at 9 pm so I have them at max only 2 hours a day.

Here is another pic of my Torch i took yesterday, note weird bubble on the middle.
It happens every day around same time

3.jpg
 
Photoperiod too long?

FYI, Euphyllia sometimes form bubbles over polyps that are about to divide. My hammer did:

hammer%20bubble%20wm.jpg
 
Also I find that when my Bubble Coral has enough light for the day, it seems to just retract. If your photoperiod is consistent each day, then it wouldn't be surprising for corals and stuff to retract at around the same time each day.
 
I have a frogspawn and torch that did the same thing due to the amount of photo period. I wanted to enjoy them at night but had the light come on to early in the morning. Changed the time so lights came on later but went off at the same time in the evening and they seem to stay full throughout now.
 
I am also thinking about my fans. I have night mode on and I think when they switch to the night mode corals got upset since patern and power are changing of the current.
 
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