True it is more stable but does nto mean you can test half as much. It also means more involvment in terms of PWC
. If I added a 20 or 30 gallon sump I would have 110-120 gallons i nthe larger size and have to do 10-15 gallon PWC
every other week.
With the smaller tank and a 20-30 gallon sump I would only have to do 5-10 gallon water changes every other week.
I guess nto a huge difference but still it means mroe salt, more maintnance, more cleaning. It also mean a lot more up-front cost in terms of tank/stand/lighting/pumps/liver rock/sand/ect.