Mosura CRS changes colour from brown to red?

[natureAddict]

yesterday i moved 2 mosuraCRS from my home to my office. within half a day they changed from brown-black to red. please comment - do they change color according to the environment?
my home - window sill natural light, no air-con, no moss, green water.
my office - halogen light, air-con , moss,

[silane]

Does the white get affected by the move?

[natureAddict]

it seems the white is more solid. By the way, both my set-ups are no air pump/filter. my only reliance is light. they are both nano cubes of about 6 inches

[silane]

They color should regain back, if not, it can be the pH, being too extreme.

[natureAddict]

Hi,

You should also check the No3. Should not be above 10.

Cheers

is that ammonia? in its 1st week it was .7 then the following week .1
Intersting to note that CRS can tolerate that amount of ammonia

[Quixotic]

NO3 is nitrate, NH3 is ammonia. And no, 10 ppm of NH3 will be a dangerous level for all fauna that is in the tank.

Nitrogen cycle: ammonia, NH3 (lethal in small amount) -> nitrite, NO2 (lethal in small amount) -> nitrate, NO3 (lethal in large amount) where -> is the conversion process by nitrifying bacteria.

I would suggest that understanding the above cycle is of paramount importance if you are into fauna-keeping.

[natureAddict]

thanks for sharing. after checking websites etc i think water change still best, rather than adding chemicals in the water.