Fresh Water Crayfish

[mikk1301]

i need some advice on my freshwater crayfish he is in a 30"x15"x12" tank with a fluval 3plus and 2" of gravel and a plastic log for hm to hide in,he is fed on catfish sinking pellets,water changed every 2 weeks and filter cleaned in tank water,tank is near a window about 2-3 foot away.the problem is that there is a large buid up of algae on the glass when i clean it off it grows back within 3-4 days can anyone give me some advice on how to reduce this annoying growth.thanks

 

[WILDER]

http/www.aquahobby.com/articles/e_algae.php