green fuzz algae fur

Hey, here are my tank specs: My shrimps aquarium 10G freshwater 2 6400K 9w FC bulbs in clip on light fixture Fluval stratum substrate Aquaclear 20 HOB Elite radiant 50w heater keeping the water around 23C (77F) Was using a sponge filter attached to a air pump but removed it Cleaned 1 per week...