hey my name is john i am 18 and ijust recently bought a 20 gal fish tank planing ongetting biggermaybe 60 or even 200 or 300. i have already done a cycling. i also have a 2 gal tank thati am cycling right now. in my 20 gal i have one plecostomus. two red tailed sharks. a white dojo loach. a black skirt tetra. a white or gold skirt tetra (used to have two one died incycling ) 3 male guppies one orange one blue and one yellow. and two swordtail on marigold female and one amazon male. i know i need a bigger tank for my sharks and for my pleco. and iknow how big they can get thats why i like them. in the tank i have cyclingi havea red betta and two ghost shrimp.