Why S. Shortcake is darkening...?

[Magem]

My strawberry shortcake is darkening...I post 2 pictures. First from 4th September (po4:0,02) and second from today (po4:0)

25th November t5 tubes will be 10 months old. Maybe time to change tubes??

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[inktomi]

10 months is probably around the time to be thinking about new T5 bulbs, that could be it. Has anything else changed other than lower phosphate?

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[joshky]

First picture looks rather pale, like your system may not have enough no3/po4 for your corals to sustain proper color/growth. Considering there doesn't seem to be much growth (maybe there was some encrusting that can't be seen?), this might be your issue. What is your no3 at since your po4 is reading 0, and what test kit are you using for po4?

 

[Magem]

10 months is probably around the time to be thinking about new T5 bulbs, that could be it. Has anything else changed other than lower phosphate?

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First picture looks rather pale, like your system may not have enough no3/po4 for your corals to sustain proper color/growth. Considering there doesn't seem to be much growth (maybe there was some encrusting that can't be seen?), this might be your issue. What is your no3 at since your po4 is reading 0, and what test kit are you using for po4?

Maybe nitrates are the reason, yes...I have been adding KNO3 daily since first October in order to keep a level of 0,2. But I have realized that today's level is 1...the reason of adding KNO3 is to reduce PO4 for combating ciano...

Any case, 1 mg/l is not too much high...but can this increase have affected so much to coloration??
Thanks for your responses


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[Magem]

The nitrates chart

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[Magem]

In first photo was 0 and now 1. I test Nitrates with salifert and PO4 with Hanna phosphorus


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[joshky]

For what it's worth, my nitrates were around 2.5ppm via Salifert and I bumped them up to 5ppm and this is what happened with my SSC.

2.5ppm

5ppm

 

[Relativity]

I used leds with my ssc and it went pale pink and lost all the green

 

[Magem]

For what it's worth, my nitrates were around 2.5ppm via Salifert and I bumped them up to 5ppm and this is what happened with my SSC.



2.5ppm

5ppm

Bingo! That is what is happening to me too...thanks for sharing. And one question please, where do you keep your SS in terms of light and flow ?



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[Magem]

I used leds with my ssc and it went pale pink and lost all the green

Yes...I know some people happened it too (Radions included). Also beautiful but... maybe this kind of reason are why it is said that t5 lighting is the best for sps


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[Magem]

In relation to my question about where keeping the SS, I have opened a new post about placement .. thanks again


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[Magem]

The link:

https://r.tapatalk.com/shareLink?ur...share_tid=2607125&share_fid=1489&share_type=t



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