help i have a 10g tank that was set up with sand and rock out of a cycled tank, i'm getting tiny bubbles and a flourecent green stuff growing on the rock, i have a emerald crab, 2 peppermint shrimp, cucumber, bleeney, tomato clown, using a hob filter with pink, filter and chemipure(?), i'm doing water changes weekly approx. 1.5 gal, topping off with rodi water, any suggestions to combat this issue

