I wanted to set up a skimmer for my 20 gallon tank, I'm not sure which one to get, I've never had any experience with them so this is a new topic for me, I just know they clean up really nicely left overs of food. I wanted to buy a sun coral and feeding them produces a lot of waste + the ammonia spikes; I really don't want to be doing so many water changes lol. Thank you!
