Tim,

Thanks for the reply. I have already cut down the lighting hours, so
that's not really an option. I do pretty regular water changes too and
the water quality is good. I haven't tested for phosphates though, so
that could be an option.

I don't know if this is hair algae as it's very short. I thought hair
algae tended to be longer, like hair (!!).

Would the type of lighting be a factor? I am thinking of changing the
halogen lights for fluorescents anyway as the halogens produce too much
heat. Would this help the algae problem?

Thanks again.

alan

First thing to do is cut down on the amount of time the light is on. Have
the lights turn on later in the day, and off earlier. More frequent water
changes will reduce the amount of nitrates in the tank which will help with
algae growth. Being that's it's a Mbuna tank, (which is too small IMO, but I
covered that a few months ago) adding fish or shrimp that eat hair algae
probably isn't an option. Plus, adding more to the tank can add to the
problem with a higher bio-load.
Test the phosphate levels in the tank. You can buy filter material that
removes phosphates if you have phosphates in the tank. Phosphates are a big
contributor to hair algae. Hair algae is difficult to get rid of and off
requires removing it by hand. Don't wipe it down and let it float off into
the tank, else it will eventuall reattach or send off pieces to grow
elsewhere. It needs to be removed. ;-)
Not real enlightening, but it's all I've got.
Tim
www.fishaholics.org



--
Alan Silver
(anything added below this line is nothing to do with me)