10-19-2011, 08:06 PM
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Adding new filter intake/outtake, leave old lines till the new colonize?
I have a 45g tank with about 14 fish. It's a relatively new tank, and about 4 weeks in. I haven't seen any spikes but keep it safe by checking my water every other day.
Currently I have a penn-plax 1000 canister filter. I didn't want to spend a lot of money on a premade intake / outtake/trickle bar setup so I decided to make my own. In the meantime, I've had the 3/4in hoses simply propped into the tank, with a safety net on the intake so no fish get sucked in. I just finished building my new piping and I'm very proud of it, I think it came out well (I'll post a pic of them).
My dilemma now is hooking them up. There was quite a lot of extra 3/4in hose, about 6 feet of hose for a 3 foot distance. I can imagine that there is a considerable amount of bacteria in those hoses. My logic suggests that I don't want to just cut them down to size and install my new bacteria-less piping, inciting spice in something.
Any thoughts on this would be appreciated. I think I'm going to just attach the super-long hose to the new piping and wait to trim it for a few weeks until new bacteria colonizes the new piping. Will this then put stress on my filter by having to pump like 8 feet of water in and out of the unnecessarily long hoses and then into the tank?