The Kosher One
New member
As the title implies, what are some of the absolute necessities for a 20 gal saltwater tank? I suppose I should elaborate on type, so here goes nothing. This will be primarily a soft coral tank, consisting of types similar to mushroom corals (still deciding completely on type, this is just the planning stage.) It is neither tall nor long (very similar dimensions all around, except width, which is about 8 inches.) I already have many supplies for this, but I'd like a general list of supplies that would benefit me most (ie; amount of live rock, sand, type of filter that isn't live rock, and other things.) I'm open to making a refugium, as I have a ten gallon tank left over. I don't plan on having any more than two fish, and maybe some invertebrates (5 at the very most). Thank you for any help.