Filtration for my new 900 liter tank?

  • We are currently upgrading MFK. thanks! -neo
I want the filtration inside the tank maby behind a btn module or something, I just wonder what kind of pump i should use and what to have as media?
 
several large sponge filters running on powerheads would be 1 option ...there are several other options including interior overflow:)
 
A large sump or go with closed loop system.
 
should it be alright to put just one header that pumps like 3000l/h behind the btn module with only sphongle media inside? or did i need to put more pumps, should be so nice if i could hide everything so nothing is seen when look into the tank :)

intake on the bottom of the module and outtake on the top of the module? should i add anything other than sphongle inside the filtration system?

for air i thinking of going with an airpump into airstones.
 
i found a pump that pumps 5000l/h, i will put blue filters with diffrent size of holes and then bioballs, should the bio balls be last in the filter chain before it goes back to the aquarium?
 
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