Radium 20K

[stephane]

The ballast Radium recomend will make the bulb definitivaly to blue + dimm and it's why in europe no one utilize that bulb

From what I have read on the Radium she will live
8-10 monthe on a AGRO ballast and 10-12 month
on a blueline.

As for the price issue dont forget that you dont need any actnic supplement so it help cover the short period living difference between saki and radium + now you could have a Radium at the price of a saki so it will be not much more $ :D

[Jayson]

I am bringing the ballast in from one of my suppliers over yonder. I will be selling them very shortly.I expect a pallet of them as well as a whack of new bulbs. This is the ballast that radium recommends is all I can say at this time. I have been running the Radiums on a couple of different tanks for a little while. I keep changing them with other bulbs to achieve the best color and growth. When my shipment arrives this week I will be swaping my eye bulbs out and putting the Radium back. Much better color and nicer overall look. I will be running them in winter for my coral greenhouse if I do not have enough light. Right now I have way to much light and do not need them. Hope this info helps.

[stephane]

There is a guy from Canada who utilise the Radium 400 http://www.aquariumpros.ca/forums/sh...=&threadid=590

Here a couple of link from past post

http://www.canreef.com/ubb6/cgi-bin/...=000717#000020

http://www.canreef.com/ubb6/cgi-bin/...1;t=000760;p=1

There a good tread on Radium I strart a will before on RC http://www.reefcentral.com/vbulletin...adium+and+user

[StirCrazy]

Originally posted by stephane:
As for the price issue dont forget that you dont need any actnic supplement so it help cover the short period living difference between saki and radium + now you could have a Radium at the price of a saki so it will be not much more $ :D

<font size="2" face="Verdana, Helvetica, sans-serif">If you don't use actinic bulbs how are you going to do a dusk dawn simulation? or are you just going to wake the poor little guys up with a 400 watt MH :D

Steve

[AJ_77]

Isn't it true Steve that MH take a few minutes to fire up, reaching full intensity gradually?

Someone else has mentioned that would be a more natural "dawn" effect than the instant "click" of the FL tubes. Another suggested staggering the photoperiods side to side, in an attempt to simulate the sun moving across the tank. I guess then maybe the light would "rise" on the one side and "set" on the other?

Just a thought...

[ 16 July 2002, 21:48: Message edited by: AJ_77 ]

[StirCrazy]

ya I guess that is true but that would be more the sun comming over the crest of a hill not the dusk/dawn that is usaly a couple hours of dim light befor you see the sun.. that I what I am taking about.

Steve

[AJ_77]

I see what you mean. Do you get that extended period at the equator? I thought that sunrise and sunset were fairly quick, with the sun dropping straight down over the horizon - none of this long sloping path we northerners are used to?

That would make for shorter dusk and dawn times...

[StirCrazy]

hmmm I was just trying to remember and if my memory serves me right the actualy dusk dawn is longer and the night is shorter.. mind you I was usaly pretty intoxicated when i have been in the tropical places.. can you remember Darren? :D

Steve

[Delphinus]

Night and daytime are roughly equal 12 hours/12 hours; sunrise and sunset are very quick (half hour or thereabouts). In my observations, anyways...

This goes for both islands in the tropics (ie coastal areas, so nothing to block the sun until it's below the water horizon), and being completely inland, where there has been mountains/terrain to create early shadows..

That said, I have never seen a sunrise or sunset period under the water -- for me it's always been midday for the diving or snorkeling, (so far, anyways [img]smile.gif[/img] ). So I don't know how long the subdued intensity lighting would be under the water. For all I know it could be totally different.

[DJ88]

mind you I was usaly pretty intoxicated when i have been in the tropical places.. can you remember Darren?

<font size="2" face="Verdana, Helvetica, sans-serif">Usually I was in this same state.. :eek: :eek: but I do remember watching and timing it off of Haiti one year. Was bored outta my skull on lifebouy sentry. It took about 1/2 hour or so. give or take. Tops an hour for full brightness.