red slime

[renaldz]

ok so the tank has been set-up now for roughly 2months neally i think and lately i seem too have lots of red slime on my sand bed! most of it starts of green and then turns into a red colour. any ideas on what this could be?
cheers
renaldz

 

[steelhealr]

Read cyanobacteria pinned above and see if it fits the description. SH