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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

question about seeding new filters

  • john gannon (john gannon)
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16 Sep 2010 18:45 #1 by john gannon (john gannon)
question about seeding new filters was created by john gannon (john gannon)
i put 2 internal filters into my malawi set up about 2 weeks ago when do yous reckon i would be able to set up tanks with them and would it bmatter if they went from a high ph to a neutral ph can the bacteria die from a ph shock
thanks john

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16 Sep 2010 19:17 #2 by sheag35 (Seamus Gillespie)
i'd still give it another forthnight minimum, can take up to 6 weeks for them to mature to a level that will handle a new tank with fish, never heard of ph shock with bacteria, but i was reading somewhere recently that differnt types of bacteria occur in different ph's so maybe you will have some die off, stick to the old rules of stocking slowly and not too heavily

Fishkeeping the Only way to get wet and wild

currently 25 tanks, and breeding is the aim of everything i keep
location:Limerick

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16 Sep 2010 19:24 #3 by dar (darren curry)
sheag35 wrote:

i'd still give it another forthnight minimum


seriously? so putting them in an established tank would have no effect at all, surely it would shorten the cycle

Check out the angling section, it is fantastic

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17 Sep 2010 12:12 #4 by igmillichip (ian millichip)
Hi John,

The media bound nitrite oxidising bacteria (nitrifying) on your filters tend to be much more sensitive to pH changes than are the free ‘swimming’ ammonia-oxidisers (nitrosofying) bacteria.

If, and this speculation as a test of the filter media would need to be done, the media is established then there may be a ‘local surface region’ that has a localised buffering that could possibly buffer against small changes in the bulk pH. But, then that could also be a buffering towards the acid side in a very well established filter with no carbonate buffering.

In general, nitrite oxidising bacteria growth is much better in a slightly alkaline pH but is pretty slow at the best of times. Hence, if the change does reduce the colony then it takes some time (several weeks…..as long as SHEAG35’s quoted time period is a likely period) to get back to good-efficiency under optimal conditions.

ian

Irish Tropical Fish Society (ITFS) Member.

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17 Sep 2010 12:39 - 17 Sep 2010 12:39 #5 by Ma (mm mm)
Assuming when you mean high to neutral you mean 8 to 7-7.5 then that drop wont be much harm.

The fact that you are cycling the filters in mature tanks will also speed up the cycle signifincantly compaired to a fresh tank with fresh water, it near halfs the cycle time I have found as existing bacteria in the aquarium populates aswell as the emerging bacteria growing afresh in the filter.


It would also depend on the stocking of the tank the filter is going into. Best to start off gradually as you would with a new tank and test the water every 24 hours for the first couple of days to get an idea of toxin levels and if they are rising or if the filter media is coping, this can be balanced with water changes too.


Mark

Location D.11
Last edit: 17 Sep 2010 12:39 by Ma (mm mm).

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