Those that don’t run a skimmer, do you filter via water changes?
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Never had any real detectable Nitrates or Phos, and now that skimmer is gone, its still same. Nada, I guess my softies or maybe rock are gobbling things up before it gets there? I expected to see at least a slight uptick. No fuge, no sump....I have a 40 breeder with 20 sump/fuge that I have never had a skimmer on. It has softies, LPS, and SPS (only one acro). I change about 1 gallon a day, but I usually have to dose nitrate and sometimes phosphate.
The only reason I run a skimmer is because my co2 scrubber is attached to the hoseIt doesn't matter where you look, sustanable farming or our own mental and physical well being, having the right microbial processes is essential. Skimmers skew and reduce the bacteria and are useless for removing the hydrophyllic compounds that promote pathogenic microbial shifts in coral microbiomes. To remove those you need to do water changes. Here's some of my systems that don't use skimmers:
90 Gallon Mixed Reef
500 gallon
Mixed Reef started in 1997, 10-07-19
220 Rimless 450 view
Links to hydrophilic stuff:
Coral and macroalgal exudates vary in neutral sugar composition and differentially enrich reef bacterioplankton lineages.
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Coral and macroalgal exudates vary in neutral sugar composition and differentially enrich reef bacterioplankton lineages - PubMed
Increasing algal cover on tropical reefs worldwide may be maintained through feedbacks whereby algae outcompete coral by altering microbial activity. We hypothesized that algae and coral release compositionally distinct exudates that differentially alter bacterioplankton growth and community...www.ncbi.nlm.nih.gov
Sugar enrichment provides evidence for a role of nitrogen fixation in coral bleaching
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onlinelibrary.wiley.com
Excess labile carbon promotes the expression of virulence factors in coral reef bacterioplankton
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Excess labile carbon promotes the expression of virulence factors in coral reef bacterioplankton - The ISME Journal
Coastal pollution and algal cover are increasing on many coral reefs, resulting in higher dissolved organic carbon (DOC) concentrations. High DOC concentrations strongly affect microbial activity in reef waters and select for copiotrophic, often potentially virulent microbial populations. High...www.nature.com
Unseen players shape benthic competition on coral reefs.
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Unseen players shape benthic competition on coral reefs - PubMed
Recent work has shown that hydrophilic and hydrophobic organic matter (OM) from algae disrupts the function of the coral holobiont and promotes the invasion of opportunistic pathogens, leading to coral morbidity and mortality. Here we refer to these dynamics as the (3)DAM [dissolved organic...www.ncbi.nlm.nih.gov

