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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

blue atinics

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21 Jan 2008 00:37 #1 by lampeye (lampeye)
not sure of the spelling but my question is are these light good for plants/algae in a freshwater tank?
i like the deep water look/effect of them, but have a fair amount of algae on my background. I dont want to make it worse, im hoping they are bad for plants/algae!!
anyone know?

lampeye

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21 Jan 2008 00:51 #2 by KenS (Ken Simpson)
Replied by KenS (Ken Simpson) on topic Re:blue atinics
Do you know what the Kelvin rating is? Generally, blue light is more suitable for marine setups. For freshwater, you're looking for 4-6k to enable plant growth and keep algae at bay. Anything above 6k is more suitable for marines.

Regards,

Ken.

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21 Jan 2008 01:02 #3 by lampeye (lampeye)
Replied by lampeye (lampeye) on topic Re:blue atinics
hi ken .
im hoping its not suitable for freshwater... i.e. not suitable for plant/algae growth (i have no plants). no idea abou kelvins,

lampeye

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21 Jan 2008 13:04 #4 by Sean (Fr. Jack)
Replied by Sean (Fr. Jack) on topic Re:blue atinics
I believe warm white (5600K)is good for plants and algae that live in shallow water 0.5M-5M), and cool white is brighter to a human eye(10,000K) is bad for every thing plant like except for inverts that have evolved to live and use light that has already lost the yellow spectrum due to the water filtering out that spectrum in deeper than 5-10M.

That would be a ecumenical matter!!!

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21 Jan 2008 16:25 #5 by lampeye (lampeye)
Replied by lampeye (lampeye) on topic Re:blue atinics
what kelvin are the atinics jack? i did a google but couldnt find anything

lampeye

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21 Jan 2008 17:08 #6 by Valerie (Valerie)
Replied by Valerie (Valerie) on topic Re:blue atinics
Actinic lighting seems to be more for marine than freshwater.
I did a small search on Google ...

Some people seem to think it makes their plants greener/redder : 66.102.9.104/search?q=cache:anOq7bMUZPUJ...k&cd=1&gl=ie

www.aquariumguys.com/diy-aquarium-lighting.html says that ...
\"Actinic light is not Kelvin rated, but measured in nanometers (420nm or 460nm) as it refers to the UV spectrum of light which is not completely visible to us. There is some debate in the aquarium community about the best uses for these bulbs. Visually they are blue and can bring out nice colors in tropical fish. Generally they are considered important for reef tanks and you often see them combined with daylight lamps in light fixtures (this produces better viewing than strictly blue light).\"

I hope this helps :-)

Valerie

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21 Jan 2008 18:36 #7 by lampeye (lampeye)
Replied by lampeye (lampeye) on topic Re:blue atinics
thanks val,
i had a read of them but im still unsure if adding one will
-cause an algae bllom
-make it harder for algae to grow
-be the same.

lampeye

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21 Jan 2008 23:40 #8 by platty252 (Darren Dalton)
The shortest answer to this is your algae will love the actinic.
If you want the algae to grow use it although your fish may not like it.
If you dont want the algae dont use actinic or any tubes high in the blue spectrum.

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22 Jan 2008 00:58 #9 by lampeye (lampeye)
Replied by lampeye (lampeye) on topic Re:blue atinics
cheers darren. what about blue moonlight tubes or are they the same?

lampeye

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