a little update.. purchased a six line and gave the damsel up for adoption. i realize the 20L is too small of a tank, so while i was in my local pet store they where having a dollar per gallon sale up to 75 gallon.....sooooo i ended up getting a Marineland 75.. so now i need all the advice i can get for starting it up... sorry for the random post with no pics and poor grammar. kind of in a hurry. will update soon with pics. if anyone has any awesome links to threads about awesome sump setups and other info TIA!