Is this cyano?? Check the pics

crzyfshygy

crzyfshygy

Member
This started forming around week 8 of the tank. It is 3 1/2 months old. It is not on the sand bed, but underneath. A couple layers down. Its red kinda sandy lookin.
Lights are on for 8 hrs a day 300watt MH
All peramiters are good. Calcium at 460
Phos are low at .01

 
something'sfishy

something'sfishy

Member
I have the same problem. Water changes don't help. Even stirring the sand...few minutes past and they have formed again. My tank is 9 months old.
 
shoreliner11

shoreliner11

Active Member
The cyano is cause by excess nutrients being trapped in the sand bed feeding the cyano. It is a common problem for many tanks. How long has your tank been set up? If you have adequate numbers of invertebrates in your sand feeding on detritus as well as sturring the sand bed, you usually don't get that problem.
Aaron
 
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