Question: Bacterial/chemical density

Sputnya

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I've been wondering about this for a while... I've had a tank fan for quite a while now, and the fan causes water to evaporate from my tank. I'm not sure how to word it clearly, but, do chemicals and bacteria disappear along with the water that is evaporating? I'm aware salt is too heavy to evaporate, but would nitrates/nitrites/ammonia and bacteria that regulate those chemicals disappear along with the water?


I've been changing my water normally out of fear of there being a high concentration of chemicals because of the evaporating water, but my ammonia indicator hasn't gone up at all no matter how much water is missing.



I hope my question is clear! Thanks in advance for answers!
 
Of course, they would not. Nitrates and Nitrites are essentially free-standing ions introduced from the breakdown of chemical compounds produced by fish. Because they are dissolved in water (through intermolecular forces) evaporating water is simply breaking water molecules' molecular attraction to other water molecules and substances. The fan essentially creates a humidity difference which makes water evaporate in order to equalize the disparity. Bacteria, likewise, do not evaporate alongside water. These bad boys are MUCHHH heavier or have a MUUUCHHH higher mass than say nitrates or nitrites or ammonia or whatever.

HOWEVER, ammonia actually would evaporate much like water. However in order to maintain an equilibrium of the concentration at T=0 to let us say T=5 hours at a time with much less water, the ammonia would have evaporated into the atmosphere - on its own, not like it would "stick to water".
 
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