SD...on your above pic you have a shelfing type growth...macroalgae maybe? I have the same throughout my 20g....what is it? I scraped most off and it groes back and shades quite a bit of my bottom....Is there an official name for this , do you have issues with it?
Thankyou for great pics! My yellow Goby loves perching on similar mushroom-color is now fading abit, not as spectacular as yours of course but bumpy.
Do your bumps open to polyps?