Zoas color turning brown

[enseng]

hi...realise that my zoas color is turning brown..wondering whether it is due to insufficient lighting?

Tank size is 3x2x2...running T5,4 x 39w tubes..2 white 2 blue..7hrs lighting period...is it insufficient?

[JizzHut]

hey bro, can refer to my tread

[LaW]

could be due to many reasons.

best to provide a pic for us to see what kind of zoas it is before i could comment more.

but one major issue with brown is light, most occasions in my experience are due to intensity and spectrum difference from where its harvested.

that being said, its pretty hard to solve that issue especially on spectrum problem.

[cedricang]

Hi EngSeng,

Zoas in a way is a little like sps interms of the lighting and colour relationship.

Generally speaking, higher the intensity (assuming right spectrum), the brighter and intense of the zoas colour. But nutrient level could also affect the colouration, i.e. higher the nutrient, the chances of it getting brown is also higher.

So in the worst case senario where the tank is having high nutrient + low light intensity you will get very brown colour. Tweaking the nutrient level and light intensity will give you a corresponding result. So to get a very bright nicely colour zoas, your best bet would be a low nutrient water and higher light intensity.

Give it a try.

[dreamlover]

Bro how long have u used for the light tubes? Maybe no more spectrum?

[enseng]

Attached are some zoas photo...

Law,

the dragon eye at IMG_0848 is I get from u last time...remember e skirting was lime green and center more orange...

I changed my lighting tube 3 months ago...

I read online that the guideline for lighting is minimum 3W per gallons...i only using T5, 4x39W for my 3x2x2 ...

so i suspect my lighting is not sufficient...what do u guys think?

[dreamlover]

Hmm... 3 months spectrum should be still enough. Maybe due to water parameter.

[LaW]

Attached are some zoas photo...

Law,

the dragon eye at IMG_0848 is I get from u last time...remember e skirting was lime green and center more orange...

I changed my lighting tube 3 months ago...

I read online that the guideline for lighting is minimum 3W per gallons...i only using T5, 4x39W for my 3x2x2 ...

so i suspect my lighting is not sufficient...what do u guys think?

hi engseng,

tts eagle eye, not the dragon.

i believe not enough light and ur nutrient level is high. got chiller?

you can try shifting them higher.

[kimwailee]

Would 7 hrs of photo period too short ? I would recommend min 10 hrs.

Try to raise 1 hr per week to minimized shock/bleaching.

[enseng]

hi engseng,

tts eagle eye, not the dragon.

i believe not enough light and ur nutrient level is high. got chiller?

you can try shifting them higher.

oh yah...sorry, mistake....nitrate used to be quite high..but now reduce to less than 10ppm..

yup..got chiller...setting at 25 deg C..

I m increasing the lighting period..and consider to add additional lights...

[enseng]

Would 7 hrs of photo period too short ? I would recommend min 10 hrs.

Try to raise 1 hr per week to minimized shock/bleaching.

thanks....will slowly increase the lighting period...