weird algae on the sand

[Jarrett]

i say its weird because under my impression algae grows when the lights are on in the tank. for me its opposite when my lights are on this stuff seems to burn away and it wont come back until the lights go out then it starts to grow. in the morning the lights come on and the sand is covered but then once again when the lights come on it goes away. anyone know why thats happening?

 

[KathyC]

What does the algae look like?
Is it possible to post a pic of it?

 

[Jarrett]

it looks like how diatoms would look covering the sand except its green and parts of it are a little small and stringy but not to bad. and i am at work right now but i will try to get one later when i am home.

 

[sunny]

Could be cyano. Pics will help.

 

[Jarrett]

i dont think its cyano its not that stringy and usually cyano wont die off when the lights come on. and yea i will get a pic later on when i get home. curious though i am going to start dosing kalk in the next few days and i heard this can kill off algae in the tank is that true?

 

[ZANYMASTER]

Look up dino flagellates

 

[Jarrett]

the pictures they show as examples don't look anything like what i have so i don't think thats it either.