Retirement and forum shutdown (17 Jan 2022)
Hi,
John Howell who has managed the forum for years is getting on and wishes to retire from the role of managing it.
Over the years, he has managed the forum through good days and bad days and he has always been fair.
He has managed to bring his passion for fish keeping to the forum and keep it going for so long.
I wish to thank John for his hard work in keeping the forum going.
With John wishing to "retire" from the role of managing the forum and the forum receiving very little traffic, I think we must agree that forum has come to a natural conclusion and it's time to put it to rest.
I am proposing that the forum be made read-only from March 2022 onwards and that no new users or content be created. The website is still registered for several more years, so the content will still be accessible but no new topics or replies will be allowed.
If there is interest from the ITFS or other fish keeping clubs, we may redirect traffic to them or to a Facebook group but will not actively manage it.
I'd like to thank everyone over the years who helped with forum, posted a reply, started a new topic, ask a question and helped a newbie in fish keeping. And thank you to the sponsors who helped us along the away. Hopefully it made the hobby stronger.
I'd especially like to thank John Howell and Valerie Rousseau for all of their contributions, without them the forum would have never been has successful.
Thank you
Darragh Sherwin
flow rates
- wolfsburg (wolfsburg)
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I'm just playing with my new filter in yet another tank that I'll be sorting over the next few weeks. It is an electronic jobby that you program from a computer.
The tank is a 300 litre open-top 5 foot tank. It will (of course

What flow rate would you set it to?
Chuurs!

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- joey (joe watson)
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- wolfsburg (wolfsburg)
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With such a high flow I think I would "wash away" CO2 and allow for too much gaseous exchange to take place at the surface. Even at max 1850LPH the flow is fierce

Thanks for you thoughts.
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- joey (joe watson)
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- SpiderMonkey (Mark O'Neill)
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Mark
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- wolfsburg (wolfsburg)
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I can see the flow rate of this filter on a computer screen in real time so I have no reason to doubt what the out put is.
I also believe there is no harm in overfiltering... as I said the filter is rated for 300 - 700 litres and the tank is at the very bottom of the scale at 300 litres.
Other opinions are welcome
@ dickiedocker... I tend to keep surface agitation to a minimum in planted tanks if CO2 or liquid carbon is used as the agitation allows for increased gaseous exchange at the water's surface, you want that to be done by the photosynthesizing plants, ie taking in the CO2 and converting it to oxygen etc. That seems to be the rough jist of what the books and product manufacturers are saying.
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- joey (joe watson)
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- SpiderMonkey (Mark O'Neill)
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So should I push the spraybar down a bit?
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- wolfsburg (wolfsburg)
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- SpiderMonkey (Mark O'Neill)
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Thanks for the help

Mark
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- wolfsburg (wolfsburg)
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PFK have had some quite good plant related articles in pretty much every issue for the past year. I'll probably clear out all the issues I have one of these days for an LFS to give out free or if there's a show this year.
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- SpiderMonkey (Mark O'Neill)
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