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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

plants and lighting

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11 Oct 2010 10:06 - 11 Oct 2010 11:02 #1 by dar (darren curry)
ok so i sourced my 39w t5s but they are marine bulbs not sure watt (ah ha ha see wat i did there) the blue light is but the white has a kelvin rating of 14000, now i know that is high for plants and my java fern has since shredded and my java moss doesn't look too great at times, so wat range should i be going for, also you might need this info, ive started using prime water conditioner and it states 5m to 200litres (great value at 15e for 250ml) but also states at a higher dose it detoxifies nitrates, now i'm doing the 200ltrs via 12Ltr bucket so it's a bit of a mathematical nightmare and even at that wat do i use one droplet per bucket? so i think i might have overdosed it slightly but does detoxified nitrate = bad for plantage?

cheers lads or ladettes

Check out the angling section, it is fantastic
Last edit: 11 Oct 2010 11:02 by dar (darren curry). Reason: i mistakingly said gallons instead of liters

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12 Oct 2010 09:29 #2 by NosIreland (Andrius Kozeniauskas)
14000K is on the high side. I use 6500K and 10000K on one tank.
On other tanks I have 8800K and Sylvania Grolux.
6500K is about right for the plants but I find it too warm for my taste.
Also I would not use Prime as a conditioner on the planted tanks at all. Because if you have enough light and fast growing plants then you would need to add NO3 not to remove it and I noticed that even in small amounts Prime has effect on NO3 levels. I would say your Java fern and moss not looking great because of NO3 problems and not light.

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12 Oct 2010 10:00 #3 by dar (darren curry)
dam that prime, dam it right to hell

cheers mate

Check out the angling section, it is fantastic

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12 Oct 2010 12:12 #4 by igmillichip (ian millichip)
I've finally got a few spare minutes to get back to this.

I am a bit questioning of the notion of 14,000 kelvin being too high a colour temperature.
I would say that too high or too low have little meaning....what would be more meaningful would 'appropriate' or 'inappropriate' colour temperatures for plants.

In general, it is the quality of light within the complete spectrum of colours that is important to plants.

Another point that I do sometimes question is 'are those colour temps quoted by manufacturers actually meaningful anyway or is it just a comparative selling specificication'.
I have Black Lamps that are rated at 14000 kelvin and above.....but they are of little use to anything other than for analytical work. AND, I very much doubt that they are really giving out light that is equal to a black radiant body at a temperature of 14,000 kelvin!!!!

Ian

Irish Tropical Fish Society (ITFS) Member.

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12 Oct 2010 12:15 #5 by stretnik (stretnik)
Replied by stretnik (stretnik) on topic Re:plants and lighting
I agree, re light intensity, Plants under natural sunlight don't seem to suffer . I think spectra is more important an issue.


Kev.

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