Welcome to AA!!!!
I just wanted to jump in and add some info on your fish selection real quick. (I would do as others have suggested and make a post in the general
FW area for better responces if you haven't already)
Two rainbow shark's in a 55 is pushing it a little bit. They need/take a lot of room for there home and having two of them will most likely result in fighting over area's.
The silver shark, assuming a catfish?, is not for a freshwater aquarium even though they sell them as such. When they are young, they are truely
FW, but as they age, they need to be adjusted to brackish water and then to full
SW to thrive. I bet the
LFS didn't tell you that one!
Cory's really need to be in groups of around 6 to be stress free. Adding only one is not a good idea
IMO. You have plenty of room to house 5 or 6 of them with the 55 gallon tank.
BTW,
FW is just as much fun as
SW. Don't let them brain wash you!
