Why all the coral colors are faded out?

[greenfort]

I have a 350L tank with a 100L bottom filter tank. I use ZEOVit products and add them by instructions. But all corals are fades. What is the reason?

My device list is here:
Skimmer: BM Curve9
Pump: 7500L/H lead pump
Light: 400W HMI with BLV 14000K
Waver:Maxspect Gyre

I add the Z Products as the follow:
SK 4.5ml/day
K-Balance 3ml/day
B-Balace 3ml/day
Xtral special 3ml/day
Start3 1ml/day
SP 3drops/day
AA 3drops/day
PIF 3drops/day
CV 3drops/day
Eisen 1.5ml/week
Bio-Bak 3drops/every 4days
Food7 5drops with bak
Bio-Mate 3drops/every 4days

I set the light work from 13:00-21:00

Someone told me the reason is the light worktime too long, is it real? Should I replace the light from 400W to 250W or use 8*39W T5HO?

 

[chaos1907]

What is your water contents? (KH,Ca,Mg,PO4, salinity etc)

KZ products are very good but they are not magic solutions...

There can be many reasons for this situation, for example, high PO4 or alot of nutrients can make this result.

BTW, according to my experience, KZ is a method that allows the coral coloration with keep them hungry. Besides, lighting is very important parameter too, as you noticed.

It would be the best way to find the source of this problem begin with to learn your water content.

 

[greenfort]

What is your water contents? (KH,Ca,Mg,PO4, salinity etc)

KZ products are very good but they are not magic solutions...

There can be many reasons for this situation, for example, high PO4 or alot of nutrients can make this result.

BTW, according to my experience, KZ is a method that allows the coral coloration with keep them hungry. Besides, lighting is very important parameter too, as you noticed.

It would be the best way to find the source of this problem begin with to learn your water content.

Thanks for your answer.
I use Salifert test my water twice aweek, the recent water parameter is: Ca 460, Mg 1380, KH 8.6, NO3 5~10, PO4 0, salinity 1.025. All looks not bad. And I change 20L water each week. The temperature keep between 24C to 28C. In this situation can I lock the problem is the light?

 

[chaos1907]

Please don't trust Salifert PO4 test. If you've got chance to use phototest like Milwaukee, try it and you're gonna see what i say! It will be too much difference between of them

I think there are to parameters for now; one is PO4 other one is lightning. If it is lightning problem then too easy to solve, change it and get rid of it If problem is about PO4 then you have a big problem more than you think.

How can say this because, it dosen't seem logical resulun of NO3 and PO4.

I hope you have just lightning problem.

 

[Eastone]

I don't think PO4 affects coloration, usually pale coloration is from nitrate being too low and can be fixed by way of KNO3 dosing, alternatively too much light? Corals usually darken in high-nutrient or low-light environments

 

[chaos1907]

Corals usually darken in high-nutrient or low-light environments

Or, vice versa.

So be it ! I just wanted to share my experience because, i'm living same problem with phosphate and i'm getting same reactions form my Corals.

Greenfort! Don't ignore pO4 anyway!

 

[ZON]

Reduce start to max 0,5 ml

 

[powder_blue]

reduce start to max 0,5 ml

+1

 

[greenfort]

Thanks above all. I'll test PO4 by using Hanna first, its already on the way. New light also ordered, I changed the light to 8*39W T5HO. Hope its works. start3 reduced to 0.4ml also.