predator stocking

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    How Should I Stock My 29 Gal?

    I have a 29 Gallon tank that i am looking to stock with 1 or multiple predatory fish.  I understand that 29 Gallons is fairly small.  Can i get some possible stocking options.  i really like red tailed sharks how many full size RTS could i have?  just one?  also what bottom feeders are...