hi guys i have a ? about the rodi, well my question is i have a coral life pro 2 rodi and i dont have a pump for it i just connect it to my sink , i then turn on the water slight enough so i can c the water drippin in side my di stage and drops come out of the blue line, and a stream comes out of the red line, well any way how can i actually know if its the right pressure. ohh also im havin a problem with some bubble algea any one knows what type of crab that will eat it and its reef safe? thanks guys
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