dimanche 21 décembre 2014

Tank cycle science?

I'm trying to remember the exact science behind establishing beneficial bacteria in a tank. Bacteria is colonized that breaks down waste. First bacteria that breaks down ammonia thrives, which is overcome by bacteria that breaks down Nitrite, which is overcome by bacteria that breaks down Nitrate. Is this correct? I assume which ever type of waste is abundant, the respective bacteria is fed and thrives.



So what type of bacteria is left colonizing a completely cycled, healthy tank? The bacteria that eats Nitrtate? And the concentration of that bacteria is as only big as how much Nitrate there is (food source)?



Or would there be ALL THREE bacteria's present for each waste phase, in there concentrations respective to that waste.



The reason I ask is actually for another hobby of mine in which nobody can seem to come up with a good answer. I started a hydroponic garden and one of the issues with hydroponics is the potential for unwanted types of bacteria (anaerobic I'm told). Some people dose their systems with beneficial bacteria which is sold as additives off the shelf. Others make their own "tea" recipes by introducing certain combinations of bacteria/fungus specimens and growing them into a liquid "living" additive.



The problem is the science behind this is in its infant form in the hydroponic hobby (imo) compared to techniques in that of salt water reef tanks. If anybody can clarify the process of established bacteria in a reef tank I can get some discussion going among the hydro community to try to figure out the best way to keep a biological colony similar to fish tanks. The difference in hydroponics is 1) Water changes are done at 100% to balance back out the nutrients (fertilizer) being used by the growing plants. This is opposed to the water changes we do in moderation to not upset the established systems we keep in salt water tanks. 2) Nothing really feeds the beneficial bacteria in hydro systems so how can they sustain. I found faint evidence of someone feeding their established supply of bacteria, but it's not common practice or even common knowledge from what I gather.



From what I can tell, the majority of people growing hydro do NOT take advantage of beneficial bacteria, there's NO good consensus on even a complete understanding of the science behind it, and their community (forums, youtube, etc.) is no where NEAR as established and informative as the salt water tanking community I've followed and been a part of for 8 years going. There's really some great minds here.




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