For those interested here's some of the research papers showing the problems caused by high nitrates and/or low phosphates, as well as showing the probelms with dosing nitrates and/or phosphates. Best source of both is from fish poop. WHile the majority of research is done on wild corals in aquaria the work done by SOuthampton Univeristy in England was done with corals maintianed for a minimum of 2 years in a closed and closely monitored reef system:
Southampton University:
Phosphate Deficiency:
Nutrient enrichment can increase the susceptibility of reef corals to bleaching:
Ultrastructural Biomarkers in Symbiotic Algae Reflect the Availability of Dissolved Inorganic Nutrients and Particulate Food to the Reef Coral Holobiont:
Reef building corals associated with symbiotic algae (zooxanthellae) can access environmental nutrients from different sources, most significantly via the up...
www.frontiersin.org
Phosphate deficiency promotes coral bleaching and is reflected by the ultrastructure of symbiotic dinoflagellates
Enrichment of reef environments with dissolved inorganic nutrients is considered a major threat to the survival of corals living in symbiosis with din…
www.sciencedirect.com
D'angelo, C., & Wiedenmann, J. (2012). An experimental mesocosm for long-term studies of reef corals.
Journal of the Marine Biological Association of the United Kingdom, 92(4), 769-775. doi:10.1017/S0025315411001883
An experimental mesocosm for long-term studies of reef corals - Volume 92 Issue 4
www.cambridge.org
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Nitrate enhancment inhibits carbon fixation (calcification) Ammonium is better than nitrate
Nitrate or nitrate and phosphate additions decreased calcification while phosphate alone additions increased calcification
Request PDF | Context-dependent effects of nutrient loading on the coral-algal mutualism | Human-mediated increases in nutrient availability alter patterns of primary production, impact species diversity, and threaten ecosystem function.... | Find, read and cite all the research you need on...
www.researchgate.net
Nutrient availability, specifically the forms and ratios of nutrients such as nitrogen and phosphorus, mediates algal symbiont parasitism
Coral reefs rely upon the highly optimized coral–Symbiodiniaceae symbiosis, making them sensitive to environmental change and susceptible to anthropog…
www.sciencedirect.com
Nitrate and Iron enhancments inhibit growth
The purpose of this study was to determine whether the addition of iron alone or in combination with nitrate affects growth and photosynthesis of the …
www.sciencedirect.com
Additionally, research shows the benefits of feeding corals is species specific and more likley than not has either no effect or a negative effect on coral growth
Improved coral cultivation will facilitate the reduction of wild harvesting, reef restoration, preservation of biodiversity, and the use of corals as model experimental organisms. In this study, we examine species-specific responses in growth and
www.academia.edu
And , keep in mind corals have simbiotic diazatrophs that assimilate dinitrogen (N2, free nitrogen) for the coral
Corals are mixotrophs: they are able to fix inorganic carbon through the activity of their symbiotic dinoflagellates and to gain nitrogen from predation on plankton and uptake of dissolved organic and inorganic nutrients. They also live in close association with diverse diazotrophic communities...
www.ncbi.nlm.nih.gov
