algae tank

Hi fellow members, New to the reefing world and still learning. I have a 20 G tank with good parameters. Tank is under 8 weeks old. I have 3 questions regarding 1) green looking algae in my filter 2) on my coral and now at the base of that corals plug (coral I am not sure what it is; I won...

Hi, I'm considering to set an algae tank for my bottom filter system. Do I need to set bottom sand for the algae tank? I am worried that the bottom sand in the algae compartment will enter the top water compartment through downwelling and block the water pump. Can I only set several live rocks...

I love the look of macro algae aquariums. I absolutely fell in love with @tigahboy.h2o (on IG) setups. They look so good and really inspire me to start a macro algae tank setup. I’d love to see your macro algae tank setups for more inspiration!