Sorry in advance if this topic has been discussed here but I jus set up my first saltwater predatory tank right now there is only a lionfish(3.5in), snowflake eel, and a small miniatus grouper(3in) and about 20lbs to 35lbs of liverock with some LR ruble in tank as well as in filter... my question is filtration I have two HOB filter one is a marineland 80gal and the other is a topfin can I get away with running this set up with water changes? Tank was fully cycled