Lighting Kelvin & Algae Question

Originally Posted by jc85

Yap. I agreed gd water quality is utmost important.

I made an assumption that water quality is of no concern. So if the SPS is expose to lower kelvin for long period, they will turn brown?

As for the fluorescent pigment, there are thoughts that its due to UV exposure. That's why many feel that MH can bring out stronger pigment.

i agree w JC. we are sps keepers thus we know what actually happens in the tank. Intensity is the key.

bro Mac, your info is incorrect.

[BarraCuda™]

The main problem of corals browing is due to excess nitrogen.

qn is how does kelvin rating/ lumens/ par value play a part to sps browning?

if nitrogen is the only cause, then there is no point having mh.

Originally Posted by spsman

i agree w JC. we are sps keepers thus we know what actually happens in the tank. Intensity is the key.

bro Mac, your info is incorrect.

I gather my info from different websites. There are so many factors that contribute to the colouration of SPS, I don't have the expertise or knowledge to include every single one, just share my 2 cents worth.

U are the SPS keeper, enlighten everone.

Kelvin is a measure that tell you your light is at which end of the light spectrum.
The lower the number the more yellow your lite is visually.The higher the number your lite is visually more blue.
This is what my understanding is.
Also the lower the k number the algae grow promotion is higher.

Regards

Originally Posted by sherman

Kelvin is a measure that tell you your light is at which end of the light spectrum.
The lower the number the more yellow your lite is visually.The higher the number your lite is visually more blue.
This is what my understanding is.
Also the lower the k number the algae grow promotion is higher.

Regards

thats correct sherman. thks for posting. 6500k is yellowish.
i complement w 20k blv bulb.
6500k promotes growth.
algae corresponds w nutrient load. do not overfeed. and get a po4 absorber.

[BarraCuda™]

Originally Posted by spsman

qn is how does kelvin rating/ lumens/ par value play a part to sps browning?

if nitrogen is the only cause, then there is no point having mh.

I said its the main problem .. I did not say that nitrogen is the only problem. Thats the reason why many users had 250watts, 400watts and many tubes of T5 cannot keep the acros colorful. Nitrogen problem is also why there are so many pple using the zeovit system to mantain the colors

Hi Barracuda, u brought up an interesting point on nitrogen. I now that nitrates will affect the corals and nitrogen is the end product of the nitrate cycle which should be gased out eventually.

Will like to know more abt nitrogen effect on our tank. Does zeovit remove nitrogen?

Let's keep this a friendly dicussion.

JC

[BarraCuda™]

Originally Posted by jc85

Hi Barracuda, u brought up an interesting point on nitrogen. I now that nitrates will affect the corals and nitrogen is the end product of the nitrate cycle which should be gased out eventually.

Will like to know more abt nitrogen effect on our tank. Does zeovit remove nitrogen?

Let's keep this a friendly dicussion.

JC

Nitrogen is not only nitrate, its ammonia, ammonium, nitrite, nitrate and other compounds that contains nitrogen. Thats why I used nitrogen instead of nitrate

Here's the link to more info on zeolite filtration

zooxanthelle within the coral keeps the colony alive. However they will use nitrogen and they are brown in color. If the water is rich in nitrogen, the zooxanthelle would bloom and over shadowed the corals natural colors.

What zeovit does is to control nitrogen at its primary form, ammonia. If the primary ammonia is controlled and removed, there will be min nitrate related problems. If zooxanthelle does not get enough nitrogen, they will die, the coral will appear lighter.

If nitrogen source is removed too rapidly by zeovit, the zooxanthelle dies and the coral start to die due to starvation. The key is to slowly ease the corals dependant on zooxanthelle's nitrogen source and shift it towards using photosynthesis.

Wow,
This is getting interesting.
We are getting more info from everyone.
This friendly discussion is great.
Please continue with your contribution.

Regards