<a href=showthread.php?s=&postid=14386608#post14386608 target=_blank>Originally posted</a> by ChrisMc73
So, for our Solana tanks, I'm reading more and more people who are doing a fuge in the back chamber(s), can anyone explain the reason for this? Does a skimmer and fuge just give extra quality to the water? If you were to not do one or the other which one is the most/least important of the two?
People like fuges because they provide an extra avenue for nutrient export (i.e. phosphate if you have macro in there, nitrates with DSBs (deep sand beds) and live rock), provide algae control, add a breeding place for 'pods which can be an added food source for you tank, and helps bring stability to those parameters listed above (NO3 and PO4) as well as providing a buffer for daily pH swings when run on a 24/7 or reverse lighting cycle than that of your display tank. (In short, during the day, photosynthesis is occuring thus consuming dissolved C02; at night the process is halted leaving more dissolved CO2 in the water which in turn raises the acidity of your water (lower ph = more acidic) because of the presence of more carbonate ions)
I believe that a skimmer is more important because it pulls out dissolved organics (poopie) before they have a chance to degrade into nitrates which is a major factor in your ability to keep corals/other invertebrates. Fish are able to tolerate higher nitrate levels than inverts. Refugiums are great too for all the reasons listed above; to add a little bit to the algae control reason, the macro algae competes with so-called "nuisance" algae in the display tank thus inhibiting to an extent the growth of hair algae and the like.
I want a refugium. I want a quieter skimmer; the stock skimmer is entirely too loud for me. I have been debating the following since I don't want to mess with the complexities/potential for failure of overflows, plus I just don't have enough space around my tank:
1. Buy a HOB skimmer and turn the first/second compartments into a refugium - I like how some people have mounted a light to the back glass to hide another component out of sight.
2. Buy a HOB refugium and upgrade the skimmer in one of the compartments.
I'm still not sure which route I am going to take, which is why I am paying close attention to the reviews of the different equipment suggested in this thread.