Black algae

[Newageclassiccar]

Ive got a 75g bowfront. My filters ar rated to do 100g and another rated to do 75 gallons and the water stays clear but I get black algae on back glass and on my sand. Any ideas? I've only got 3 fish in it at the moment totaling 7 inches.

 

[TheCommunityCichlid]

Scrub it off, cut back your lighting and feed less. That seems to be the best remedy. If you enjoy algae eaters one may help but not eliminate it completely

 

[Newageclassiccar]

It's the algae growing on the white sand it's my biggest concern. It grows like a carpet. I have a siphon gravel cleaner that doesn't do anything. It sucks out more sand than anything else.

 

[TheCommunityCichlid]

Try stirring your sand more often. That should help a little

 

[Newageclassiccar]

Thanks for the advice.

 

[Cichlid-dude]

Do you have any pictures of the algae? Ive never seen black algae before, very dark green but not black. Id be interested to see it.

 

[john.hunter225]

If its black beard algae I bought a 75g setup that had it all over the lace rocks, bottom around the glass, fake plants. I took them out used some hydrogen peroxide and scrubbed them with a bristle brush, scrapped stuff off glass, reduced the lights on for maybe 6 hours. Haven't seen any of it growing back at all.