I am about 3 weeks into my first tank ever. I am starting to see some light browning on the sand. Photo attached. Just wondering if this is just the natural course of my tanks cycle or if corrective actions need to be taken to stop the spread of whatever it is, etc.
VERY TYPICAL UGLIES OF A NEW TANK TRYING TO ESTABLISH. YOU CAN GENTLY STIR SAND BED WITH A PLASTIC TUBE TO CHURN IT AND REDUCE WHITE INTENSITY A LITTLE TO ALLEVIATE IT