There was a very interesting thread on this:
My takeaway was:
Post in thread 'Light, Alkalinity, Nutrients.' https://www.reef2reef.com/threads/light-alkalinity-nutrients.319223/post-9454985
If these are the general principles:
1. Low P (phosphorous limited) higher PAR leads to bleaching
2. High N (Nitrogen rich) lower Alk leads to reduced growth and browning.
Then...
ULNS should have lower PAR and lower Alk.
High N / Low P systems should have lower PAR and higher Alk.
Low N / High P systems should have higher PAR and lower Alk.
High N / High P systems should have higher PAR and Higher Alk.
Are these principles accepted in the reefing community?
If so, the question is what are the recommended values for SPS, LPS, Softies depending on the style of tank your running?
We know old school reefers were successful with ULNS which many tried to emulate for years. Could it be they were more successful because lighting wasn't as tunable as it is today and they targeted NSW Alk and achieved ULNS with lower PAR and lower Alk?
Light, Alkalinity, Nutrients.
I'd like to hear your thoughts of the relationships of these 3 parameters. For example, I've seen recommendations to adjust nutrient levels upwards if running high alkalinity, which seems to defy Liebig's Law of the Minimum which states the rate of photosynthesis is regulated by the least...
www.reef2reef.com
My takeaway was:
Post in thread 'Light, Alkalinity, Nutrients.' https://www.reef2reef.com/threads/light-alkalinity-nutrients.319223/post-9454985
If these are the general principles:
1. Low P (phosphorous limited) higher PAR leads to bleaching
2. High N (Nitrogen rich) lower Alk leads to reduced growth and browning.
Then...
ULNS should have lower PAR and lower Alk.
High N / Low P systems should have lower PAR and higher Alk.
Low N / High P systems should have higher PAR and lower Alk.
High N / High P systems should have higher PAR and Higher Alk.
Are these principles accepted in the reefing community?
If so, the question is what are the recommended values for SPS, LPS, Softies depending on the style of tank your running?
We know old school reefers were successful with ULNS which many tried to emulate for years. Could it be they were more successful because lighting wasn't as tunable as it is today and they targeted NSW Alk and achieved ULNS with lower PAR and lower Alk?