Quote:
Originally Posted by Bblinks
I run my carbon at a slow flow, just enough for a small tumble at the surface of the media and for phosphate I run it with high flow.
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Hmm ... maybe we could get some clarity here
I don't want to start an arguement
but I've seen the opposite recommended
In the quote below ( taken from
this thread ), Doug says higher flow for carbon, and lower flow for gfo
Quote:
Originally Posted by fishytime
flow to carbon should be around 400-600 GPH and flow to GFO should be around 200-400 GPH....personally Ive only ever used "Rowaphos" and its supposed to look like boiling water when it has proper flow, so definitely not aggressively tumbling....cant speak for other kinds/brands of GFO
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I've been running my carbon at a 'high boil' and my gfo at a more conservative 'rumble'
I've read 'boiling' carbon can allow particles to enter the DT and cause HLLE, so my carbon exits before my socks ...
What's the correct flow rates ?
Edit: To answer your question;
It's up to you. I run both of mine 24/7 but you could run them only when you need them