Hi, I'm a refugee from freshwater. Many years ago I kept a very
successful 10g Berlin style nano reef. I'm thinking of getting a
Nanocube and starting a tiny reef again, but Nanocubes don't have a
skimmer or even a spot for one. The guy at the reef shop said people
are using activated carbon now to remove DOC in nano setups. Does this
really work? Last time I the skimmer kept the water clean enough that
I had a tomato clown in the setup. Would I be able to have a fish
without a skimmer?