Hey Y'all, I am in need of some really big help. I've been trying to start a planted aquarium for some time now and one problem leads to another and then to another and so on and so forth. My most cumbersome challenge has been this fuzzy algae that grows on the substrate, plants and the diffuser!
Currently, the pH is at 6.5 and KH at 5. I do routine water changes and am just lost... please help!
Holy smokes! That's some serious algae! Your pH and KH are fairly insignificant. What matters is Light and CO2. I'm pretty confident from that photo that you've got too much light. Fix the light then hire yourself a troup of algae eaters to clean up the mess. Shrimp and ottos should help.
There are various other things that cold be contributing to your situation. Post all the details of your tank (equipment, water additives, substrate, flora, fauna, temperature, and anything else you can think of) then folks here can help you figure out ways to improve.