HighlandReefer
Team RC
Nate,
Too many variables for me to say. I did not have any cyano problems while dosing vinegar. I did develope agal problems though. Go figure. IMHO, my algal problems were a result of overfeeding. IMHO, the amount of food that hobbyists add to their system, has a big effect on both cyano and algal problems and trying to take this out of the equation is difficult when comparing systems. I have read so many articles regarding algae and cyano my head is swimming now. :lol: I have concluded the type of DOM plays a big role also. Vitamines, amino acids, fatty acids ...............etc, all have shown to have a significant increasing effect on algal, dino and cyano populations, especially when they reach higher levels, which is not impossible in our tank system. Many of the articles have stated the nitrate levels (within reason) have little effect on the pest problems. I have a nitrate level around 15 ppm now and no pest problems. Some of the articles state that limiting phosphate significantly decreases bacterial populations as well as many algal populations. There seems to be a direct correlation between phosphate levels and DOM levels on the populations of bacteria. High DOM lowers bacterial populations. Low phosate decreases bacterial populations.
How this all plays in limiting pest populations, I have not figured out. :lol:
I have read this article three times and can't seem to grasp what I want from it. Perhaps you can provide some input from it that may be helpful in my understanding.
Consumption of dissolved organic carbon by marine bacteria and demand for inorganic nutrients.
http://www.int-res.com/articles/meps/101/m101p023.pdf
From this article:
ABSTRACT: Seawater cultures were used to study seasonal and diel variations in bacterial growth and
nutrient availability. In both the Baltic Sea and the Northeast Mediterranean, the least available
component for bacterial growth was phosphorus. In the Baltic Sea, carbon was available in excess for
bacterial growth on all sampling occasions. Compared to the controls, additions of nonlimiting concentrations
of inorganic nitrogen and phosphorus increased the yield of bacteria compared to the control
with 156% and the degradation of dissolved organic carbon (DOC) by 64 % (as determined by high
temperature catalytic oxidation). Analogous, bacterial growth yield increased along with an accumulation
of inorganic nutrients in diel experiments with an intact foodweb (microcosm). The concentration
of uthzable carbon (UC) was determined from bacterial consumption of DOC in seawater cultures during
non-limiting nutrient conditions. Utilizable phosphorus (UP) and utilizable nitrogen (UN) were calculated
by converting the bacterial biomass in the cultures into phosphorus and nitrogen equivalents.
In the Baltic the average concentrations of UC, UN and UP were found to be 23 FM C. 0.6 pM N and
0.03 pM P respectively. Heterotrophic bacteria preferentially utilized inorganic nitrogen and phosphorus
to support growth on a short time scale (days). Bacterial carbon content decreased as a result of
nutrient additions from 51 k 7 to 32 f 5 fg C cell-' Growth efficiencies varied from 11 to 54 % in
untreated cultures compared to 14 to 58% in cultures supplemented with nitrogen and phosphorus.
Too many variables for me to say. I did not have any cyano problems while dosing vinegar. I did develope agal problems though. Go figure. IMHO, my algal problems were a result of overfeeding. IMHO, the amount of food that hobbyists add to their system, has a big effect on both cyano and algal problems and trying to take this out of the equation is difficult when comparing systems. I have read so many articles regarding algae and cyano my head is swimming now. :lol: I have concluded the type of DOM plays a big role also. Vitamines, amino acids, fatty acids ...............etc, all have shown to have a significant increasing effect on algal, dino and cyano populations, especially when they reach higher levels, which is not impossible in our tank system. Many of the articles have stated the nitrate levels (within reason) have little effect on the pest problems. I have a nitrate level around 15 ppm now and no pest problems. Some of the articles state that limiting phosphate significantly decreases bacterial populations as well as many algal populations. There seems to be a direct correlation between phosphate levels and DOM levels on the populations of bacteria. High DOM lowers bacterial populations. Low phosate decreases bacterial populations.
How this all plays in limiting pest populations, I have not figured out. :lol:
I have read this article three times and can't seem to grasp what I want from it. Perhaps you can provide some input from it that may be helpful in my understanding.
Consumption of dissolved organic carbon by marine bacteria and demand for inorganic nutrients.
http://www.int-res.com/articles/meps/101/m101p023.pdf
From this article:
ABSTRACT: Seawater cultures were used to study seasonal and diel variations in bacterial growth and
nutrient availability. In both the Baltic Sea and the Northeast Mediterranean, the least available
component for bacterial growth was phosphorus. In the Baltic Sea, carbon was available in excess for
bacterial growth on all sampling occasions. Compared to the controls, additions of nonlimiting concentrations
of inorganic nitrogen and phosphorus increased the yield of bacteria compared to the control
with 156% and the degradation of dissolved organic carbon (DOC) by 64 % (as determined by high
temperature catalytic oxidation). Analogous, bacterial growth yield increased along with an accumulation
of inorganic nutrients in diel experiments with an intact foodweb (microcosm). The concentration
of uthzable carbon (UC) was determined from bacterial consumption of DOC in seawater cultures during
non-limiting nutrient conditions. Utilizable phosphorus (UP) and utilizable nitrogen (UN) were calculated
by converting the bacterial biomass in the cultures into phosphorus and nitrogen equivalents.
In the Baltic the average concentrations of UC, UN and UP were found to be 23 FM C. 0.6 pM N and
0.03 pM P respectively. Heterotrophic bacteria preferentially utilized inorganic nitrogen and phosphorus
to support growth on a short time scale (days). Bacterial carbon content decreased as a result of
nutrient additions from 51 k 7 to 32 f 5 fg C cell-' Growth efficiencies varied from 11 to 54 % in
untreated cultures compared to 14 to 58% in cultures supplemented with nitrogen and phosphorus.