I have been using a 29 for saltwater for 13 months and it is the only way to go. You can easily add two bio options: protein skimmer and UV. DO NOT use the stand they Oceanic sells for the Bio 29. It is a accident and mess waiting to happen. Super cheap construction. I strongly recommend a substantial stand. - the acquarion will top out about 200 pounds. The water and air pump are the almost silent.