Hi can anyone help i have green algae on my rocks in my small tank it is not near sunlight but woundering if my filter is the problem i have a basic filter elite it has no carbon in it just a sponge ya rinse do i need a better filter system for my tropicals? Also can I take fish out and clean my tank throughly I have a bristle nose and a catfish no major alage eater. thanks Baino :bounce: