"Les Johnstone" wrote in message
...
Hi all,

Just setting up my tank again after a wipe out a few months ago. Got
myself
a UV this time. Is it OK to put it in line with the ext filter or will it
reduce the flow rate to much, should I put the UV on its own filter? The
ext
filter is 1000lph on my 300l tank.

Thanks for any help
Les


If you want to kill bacteria [bad and good] that is floating about your
current, you will need to set it up in a slow flow. It much more effective
when it have longer contact time. I recommend not to use UV unless you
really have a bad bacteria out-break.

CapFusion,...