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Hi there, ive got a 300 USgallon tank and dont know what to put in it, im cycling my thank without fish, ive been told it can take up to 8 weeks for such a large tank to cycle. Ive decided on a few fish that i would like to have, namely 4 oscars, 3 silver dollars, 2 bala sharks and one Pleco, i would also love to add a few discus to the tank too but am sceptical because of their water requirements and dont know if they will get along well with the oscars. can anyone help???