Noob looking for info :D

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i went to piscies and big als today and piscies said that i can use a sump or a "hangy" skymer for the tank if i wanna safe money, the girl in bigals tried to sell me almost 1000$ in stuff... sump skymer pump... 500$ in live rock and etc...

i know i need the skymer and he live rock... but paying 2000$ (just like the bigals girls said to me) its kind of too much... 1000$ is very reasonable...

i been looking in the forum but i want to know stores too xD... in calgary area...

thank you for the help