OK, OK... canister filters
 

I was looking at the marineland C series canister filters and the boxing week price is under $100 for both the 160 and 220. I don't see any method to adjust the flow so I wondered if a unit rated fo 30 gallons would still be suitable for a 37 gallon tank or are there issues that I will wish I had gone to the 220 which is rated for 50 gallons? I don't really want a huge "current" in the tank.

My gut says go with the 220. From the manual it looks like it comes with all the necessary parts and, seeing as I am not going to pick it up, this is crucial. Kate is NOT going to want to have to work from a parts list. That and I might want a slightly larger filter for some possible future consideration. :roll:

I am not likely to use the carbon but this unit allows replacement of the various filter media similar to the aquaclear HOB unit.

Sadly, I placed the tank out from the wall to allow for the HOB unit and now the tank is full. I think that I will empty it enough to slide it back the 3", this will help with the murk anyway.

The only issue that I might be overly concerned about is some of what I hear regarding the hoses coming loose and casing some level of flooding. I would be putting the unit in a small tub with a water sensor on it as I DO NOT want to have to ever deal with a leak going un-noticed.

Jeff.

Two Little Fishies Barbed Ball Valves - Bulk Reef Supply

These are what you use to slow the return flow down. Only use them in the return line, never restrict the intake flow.

Thanks, that would do the trick.

Cavitation I suppose.

Jeff.

None that i'm aware of. Unless your totally chocking it off.

I have the 360, so up a size.. I'm not sure if I'm supposed to do this with it (haha) but the black handle between the base of the in/output lines, when you move it up and down it controls the flow rate.