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.
is just as much fun as SW
. Don't let them brain wash you!