Hey guys, As some of you will know I put a new canister filter on my tank almost a week ago, and so far it's been great. However, today I have noticed black and white spots of something growing on the inside of the tubing, it's on the inlet and outlet of the filter, but not in any of the plastic parts or in the tank... It also looks like the water itself is dirty, but I know it not to be as I can see the water coming out of the spray bar and it's clean as can be... Please help =\ Edit: Took some photos as below. The spots are all the way along the tubing, but as I said the plastic attatchments that go in the tank like the spray bar and the intake area, even the hook thingy's that hook over the tank, they're completely clean. I think I put it in last Thur/Fri.