spot algae on glass only

[ocnbrze]

hello,
so i have this algae growing only on the glass:

and no where else. this is a weeks worth of growth after wiping the glass clean. nitrates are at 10.0 ppm and phosphates are at .13 ppm.

its an acrylic tank so it is tough to wipe off completely. i have mostly soft corals and a nice maze brain coral.

anybody know what these spot algae is? diatoms? dino's?

 

[vetteguy53081]

hello,
so i have this algae growing only on the glass:

and no where else. this is a weeks worth of growth after wiping the glass clean. nitrates are at 10.0 ppm and phosphates are at .13 ppm.

its an acrylic tank so it is tough to wipe off completely. i have mostly soft corals and a nice maze brain coral.

anybody know what these spot algae is? diatoms? dino's?

Looks like slgae dpores and with the high phosphate- is being supported
By chance, is this tank at or near a window?

 

[ocnbrze]

Looks like slgae dpores and with the high phosphate- is being supported
By chance, is this tank at or near a window?

no but it is well light. no direct sunlight . the room has a lot of windows with a lot of white walls so light does bounce around.

do you mean algea dpores? what is that?

 

[vetteguy53081]

no but it is well light. no direct sunlight . the room has a lot of windows with a lot of white walls so light does bounce around.

do you mean algea dpores? what is that?

Darn spell check- spores
I asked about windows as uv will often cause and sustain this
Having acrylic tanks- safe removal is edge of an old credit card and even original- NON SCENTED magic eraser sponge
A piece of black construction paper from Walmart placed on the side of the tank which receives the window light will reduce the algae issue

 

[ocnbrze]

but its not direct sunlight. its just a well lit area. no sun hits the tank.

it only grows on the glass and the back walls which unfortunately is light blue, so you see the growth there then on a black backed tank.

if i reduce the phosphates, i am sure that will help.

so this is not dino's or diatoms, right?

 

[vetteguy53081]

but its not direct sunlight. its just a well lit area. no sun hits the tank.

it only grows on the glass and the back walls which unfortunately is light blue, so you see the growth there then on a black backed tank.

if i reduce the phosphates, i am sure that will help.

so this is not dino's or diatoms, right?

Dino out of the question and reducing phos will help- .08 is a safe range
Its not direct sunlight but UV contributing to this. It does shave off easily with an old credit card or similar

 

[ocnbrze]

if this is just algae, would more snails help? and though a credit card does help, it still takes some elbow grease to get them off of the glass.