my tank has been set up for about a month now and im getting brown algae on the stones and front of the tank , has the tank not cycled long enough? it has about 15 plants , lights are on a timer and get 12 hours a day. it just under 4ft and hold 250 litres , and has 5 rummy noses , 6 zebra danios and a couple of 1cm bistlenoses and 2 leopard corys. i have 1 inch of dalton aquria mix followed by 1/2" of propergating sand and them friut salad stone on top , my plants are growing well and the glosso is spreading out about 5mm a day from some of the shoots.
is it a case of letting it cycle more ? cut down lighting? increase lighting?