THE MESOSPHERE, Whats the MAXIUMUM Amount of H20 it Can Retain?

Question

There is water in the MESOSPHERE according to what I have read. So far its just miniscule amounts spread thin.
However;
I read 2 articles about water way up in the Mesosphere (possibly cometary water)
http://findarticles.com/p/articles/mi_m1200/is_n8_v152/ai_19731995

"Reservoir of water hides high above Earth - water vapor in mesosphere"

and this article:
http://www.highbeam.com/doc/1G1-20481255.html

"Water, water, way up high.(researchers find increased concentrations of water vapor in the middle layer of the atmosphere)"

How much water can the mesosphere retain before we have a disaster on our hands and it all comes crashing down on us?
If it comes down, will it release the Kinetic energy cause when it entered the atmosphere in the first place at thousands of miles a second,
OR, has that energy already been radiated back into space.

thank you for your answers

Answer 1

There is more moisture in the mesosphere due to incresed temperature. There really is no way to tell exactly how much humidity the mesosphere can hold because temperature and pressure are also factors to look at.

As you might have heard a lot about, Global warming, is playing a big part in this. naturally, the higher the temperature the more humidity the atmosphere can hold depending on the pressure. Paragraph below explains pressure. It is a long paragraph concerning pressure: skip it if you are not interested in the high and low pressure part and just see my conclusion to your question.

Air masses are affected by the general atmospheric pressure within the mass, creating areas of high pressure (anti-cyclones) and low pressure (depressions). Low pressure areas have less atmospheric mass above their location, whereas high pressure areas have more atmospheric mass above their location. In meteorology, an anticyclone (i.e. opposite to a cyclone) is a weather phenomenon in which there is a descending movement of the air and a relative increase in barometric pressure over the part of the earth's surface affected by it. At the surface the air tends to flow outwards in all directions from the central area of high pressure, and is deflected on account of the earth's rotation (see Coriolis effect) so as to give a spiral movement. In the northern hemisphere an anticyclone rotates in the clockwise direction, while it rotates counterclockwise in the southern hemisphere. The rotation is caused by the movement of colder higher pressure air that is moving away from the poles towards the equator being affected by the rotation of the earth. Since the air in an anticyclone is descending, it becomes warmed and dried, and therefore transmits radiation freely whether from the sun to the earth or from the earth into space. Hence in winter anticyclonic weather is characterized by clear air with periods of frost, causing fogs in towns and low-lying damp areas, and in summer by still cloudless days with gentle variable airs and fine weather. Anticyclones generally bring fair weather and clear skies as the dynamics of an anticyclone lead to downward vertical movement which suppresses convective activity and generally lowers the mean relative humidity, in contrast to the upward vertical movement in a cyclone. However as the anticyclone moves over the earth surface it may heat up locally, acquire water from the land or oceans or encounter warmer wet air. Local geography may cause a range of localised weather phenomena specific to anticyclones, while the interaction of the different air masses, which occurs at weather fronts, may cause a range of weather events. however, A low pressure area, or a low for short, is a region where the atmospheric pressure is lowest with relation to the surrounding area. Tropical storms, extratropical cyclones, subpolar cyclones, and subarctic cyclones are called low-pressure cells in some English-speaking communities Lows are frequently associated with stronger winds and atmospheric lift. This lift will generally produce cloud cover, due to adiabatic cooling, once the air becomes saturated. Thus, low pressure typically brings cloudy or overcast skies, which may minimize diurnal temperature extremes in both summer and winter, due to the significant cloud cover. This is due to less incoming shortwave solar radiation and lower temperatures, since the clouds reflect sunlight. At night, the absorptive effect of clouds on outgoing longwave radiation, such as heat energy from the surface, allows for warmer diurnal low temperatures in all seasons. Climatologically, low pressure forms at the Intertropical convergence zone (ITCZ), as part of the Hadley cell circulation. Many of the world's rainforests are associated with these climatological low pressure systems. Frontal lows are temperate zone phenomena, and develop along the polar front as a result of the interaction between cold and warm surface air masses. Thermal lows also form over areas such as Death Valley as the result of intense ground heating; they are much smaller in geographic extent than either convergence lows or frontal lows. Surface low pressure systems will tend to be smaller in area and have stronger surface winds than a given high pressure system, due to the addition of surface friction to the pressure gradient force, centrifugal force and coriolis effect that drive the circulation.

The idea of the whole Earth to be all of a sudden all at once Low or High pressure is highly unlikely therefore the moisture in the Mesosphere will not suddenly downpoor on us. I really wouldn't worry about it. however global warming/dimming I would.
here are sites on this under sources if you want to read further: I did a lot of research on this subject or you can look at my 360 blogs http://blog.360.yahoo.com/blog-dMWGRys6aa_XpBRW8maZPnay52Qj_6U-?cq=1

Answer 2

You are already overstocked. A 5 gallon is very small, Guppies are very active, too active for a 5 gallon, they shouldn't really be in any less than 10 gallons. A 5 gallon is only really good for a Betta, a shrimp tank, or an apple snail tank. If you want to breed guppies you need 15 gallons minimum, they will reproduce every 21-28 days or so, and up to 30 fry or more. They will eat their own fry but that won't stop a population explosion.