Help with my new tank

[karjim]

Hi, I am building a 7 x 2 x2'5'' feet thank I already have a small gars (5-6 inch). I want to know if I can put with the gars in the new thank 3 oscar (3-4.5 inch) and a shovel nose cat fish ( 3- 4.5 inch)? also wich other fish can i put on the tank? in filters I have a magnum 350 and a fluval 405 and planing to change the 350 magnum to other filter.
Sorry for my inglish.

 

[jsodwi]

The oscars and gars will be ok together and the shovelnose will be ok for a short time but will grow out of room within the first year or so. Your filtration is going to need to be beefed up tremendously. Neither of those 2 canisters are going to cut it. If you want to stick with the canisters, look into a Fluval FX5 or Eheim 2026 I believe it is.

 

[karjim]

OK so in that cas i will not put the shovel nose in the tank and in filters i am planing to upgrade to a eheim. Wich other fish can I put in the tank?