starting a shark tank or aggressive tank. :) same thing?

[mikegray]

i have a new 140gallon fish tank. im gettting a 40gallon sump. im going to have sharks/eels/rays/ other fish that will be fine with these dudes. what setup should i have like skimmer. etc.

 

[gasguzzler]

Whats the dimensions?

 

[mikegray]

like 7ft long im guessing 2 feet white im not sure.. at all.. pretty sure its 7 feet though, its at my other house

 

[gasguzzler]

Youre about a foot too shy in each direction for a more active shark. You could do an eppaulette, bamboo or coral catshark. As far as rays, I suggest either a Cali, Cortez or bluespot. NOT the bluespotted ribbontail, the dasyatis kuhlii bluespotted ray. Run a search for some pics.
As far as equipment, buy as much and as big as you can afford. Dont skimp and try to get your flow rate from your wet/dry to 1000 gal/hr to ensure oxygenation. Get a good canister filter, large skimmer and UV sterilizer if you want to go over the top. Welcome to aggressive and good luck.

 

[mikegray]

do sharks actually outgrow aquariums or do they only grow to a size of ur tank?

 

[tony detroit]

They outgrow rather quickly in small tanks. Go with an 8' by 30'' tank footprint if you can. I know this isn't always possible, but if you can longer and wider is certainly much better.

 

[gasguzzler]

Theres not anything you can do about it. Theres no way to have a healthy shark with a stumped growth rate. Even my bamboo grows 2" a month.

 

[harlequin]

thats too small of a tank for a shark, you need a 180+ for even the smallest shark. And all marine fish will keep growing until either they hit max size or die from the stress of being too big in a small tank.