Hi,
Have you had your water parameters tested recently? High nitrates can cause flashing. How often do you change your carbon? It should be replaced every 2 weeks at the most because after that it will re-release chemicals back into the tank. Another cause for flashing is external paracites so a ...

Hi,
I can honestly say I do not have nitrates and over the last few years the most I have ever had is less than 10ppm. I have a very good bio going. At first I had alot of problems with keeping cories and after alot of internet research I found that alot of people that had these problems had nitrate ...

Hi,
It is hard to see but there is a saucer {that you put underneath potted plants}, that the sand sits in. I know this because this is my tank my daughter put the picture on this forum for me. Hi, all great forum so decided to join.

Hi,
Cories are very sensitive to nitrates so I would try to get your nitrates down to zero if possible or less than 10 if not. I do a test for nitrates when I see them scratching and almost always its over 10 and after a water change they are fine. If you are having trouble with nitrates try ...