yeah, i had the large saltwater in the 52 gallon which is what i bought it for originally.....then i had to move & decided it was too much work to go thru all the required work to set it upagain, so i set it up as a freshwater till i moved again

main reason i'm sticking w/ small (even tho it is alot harder to keep stable) is that i'll probably be moving in 16-18 months, so i'll wait till i get more permanatly settled to do a 150+ gallon saltwater reef setup like i want to do