Forum: Q&A
02-22-2002, 12:13 AM
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Replies: 4
Views: 1,774
Size of some threads
Hi,
I don't mind big pictures...but if the text didn't expand (justify) with the pictures -- that would be great.
- Victor.
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Forum: Reef
02-21-2002, 11:54 PM
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Replies: 35
Views: 5,761
input needed. VHO testing...
Hi,
Unfortunately, I can't find my scope. Its somewhere in my house...but I don't know where I put it.
You may find a big difference between real power and VA on the Tar ballast. Usually,...
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Forum: Lower Mainland
02-21-2002, 08:11 PM
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Replies: 20
Views: 4,213
March Meeting
Hi,
I'll try to make it. Thanks for hosting.
- Victor.
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Forum: DIY
02-20-2002, 11:25 PM
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Replies: 11
Views: 3,592
DIY PC LIGHT
Hi,
I asked them about 6500K PCs a while back, and they said they can't get them (they are a european thing). But, I heard that they are trying to get 5000K PCs (50W/55W) for $16 or so.
-...
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Forum: DIY
02-20-2002, 03:12 AM
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Replies: 17
Views: 3,061
Calling all electronic geeks :)
Hi,
Its in my head right now...so I have the circuit. I am a bit busy these days...same problem/deadline as Titus.
- Victor.
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Forum: Lounge
02-19-2002, 11:18 PM
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Replies: 7
Views: 1,774
PST IS INCREASED!
Hi,
Yah...7.5% It sucks, but it is quite interesting to see the government's justification for it.
Some might have trouble swallowing the $8 a carton habit though...
- Victor.
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Forum: DIY
02-19-2002, 11:09 PM
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Replies: 11
Views: 3,315
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Forum: DIY
02-19-2002, 01:24 PM
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Replies: 5
Views: 1,997
Poor man's 10K?
Hi,
The regular types are real 6500K lamps and the type R are labeled as 6500K, but they are closer to 10000K.
Personally, I have read up on this Poor man's 10K and it will only work if you...
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Forum: Reef
02-19-2002, 02:39 AM
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Replies: 6
Views: 1,843
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Forum: DIY
02-18-2002, 12:39 PM
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Replies: 11
Views: 3,315
Workhorse 7 ballast for VHO.
Hi,
You might want to check this thread out first...it may answer all of your questions.
http://www.reefcentral.com/vbulletin/showthread.php?s=&threadid=48133
- Victor.
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Forum: DIY
02-18-2002, 03:34 AM
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Replies: 11
Views: 3,592
DIY PC LIGHT
Hi,
For a dual 55W, you'll need a workhorse 5 ($35, I think). You can check at www.fulham.com (http://www.fulham.com) for details regarding wiring and ballast selection.
Workhorse 7 will work...
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Forum: DIY
02-16-2002, 03:48 AM
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Replies: 41
Views: 7,208
Mirror
Hi,
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr> It is a heat sink. But removing that heat from it isn't nearly as efficient as putting a fan that is...
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Forum: DIY
02-15-2002, 04:15 AM
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Replies: 41
Views: 7,208
Mirror
Hi,
I would agree that focusing light for corals is a good thing -- that is if the corals want more light. However, if your precious SPS coral sits between a bright band and a no/low light band...
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Forum: Reef
02-15-2002, 03:36 AM
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Replies: 7
Views: 1,729
need advice on proper temp and specific grav
Hi,
I run my at 80 and 1.024-1.025.
IMHO, higher SG levels seems to prevents some diseases from occuring. Higher temperature improves growth rates (to a point...maybe a maximum of 82 to 84)....
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Forum: Reef
02-15-2002, 01:03 AM
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Replies: 3
Views: 1,539
coral depth
Hi,
Usually corals are in the 0m to 40m water depths.
From a PAR respective -- 40m is about 125-150 uE/(m^2 * s) or around 3000 lux. Around 7000 lux at 15m.
- Victor.
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Forum: DIY
02-14-2002, 11:28 PM
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Replies: 41
Views: 7,208
Mirror
Hi,
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr> Won't happen.. Have you ever had the surface of your tank perfectly calm ALL the time? I haven't, Not with...
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Forum: DIY
02-14-2002, 04:43 AM
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Replies: 41
Views: 7,208
Mirror
Shane,
White paint have been engineered to reflect all visible light -- hence the colour white. However, each blend/brand of white paint have no guarantees as to what it will do to IR, UV and...
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Forum: DIY
02-14-2002, 04:02 AM
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Replies: 41
Views: 7,208
Mirror
Hi,
IMHO, it really does matter if the light is distributed using a specular reflector or a diffusive reflector. The main idea is to get light from the bulb in to the tank and both do the job. ...
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Forum: DIY
02-13-2002, 03:01 PM
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Replies: 41
Views: 7,208
Mirror
Hi,
I am not sure, but I seem to recall Sanjay saying that a spider reflector makes a 175W MH as bright as a 250W MH.
- Victor.
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Forum: Reef
02-13-2002, 02:53 AM
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Replies: 11
Views: 2,656
Light meter.
Hi,
Do you think I could borrow it when you are done with it ? Or at least make it available to club members to borrow for a nominal fee.
- Victor.
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Forum: DIY
02-12-2002, 11:29 PM
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Replies: 41
Views: 7,208
Mirror
Hi,
Yah...using mirrors to build a reflector can work...but MH tend to be very hot and they can shatter the mirror if water is splashed on to it. So...it is a bit more risky.
As for the...
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Forum: Reef
02-12-2002, 02:30 AM
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Replies: 11
Views: 2,656
Light meter.
Titus,
Congradulations. Now...the fun part...writing the thesis.
Happy Chinese New Year !
- Victor.
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Forum: Reef
02-11-2002, 10:18 PM
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Replies: 11
Views: 2,656
Light meter.
Hi,
Say...the light meter -- is it a lux meter or a PAR meter (or both) ?
- Victor.
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Forum: Reef
02-11-2002, 03:33 PM
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Replies: 3
Views: 1,381
Does bacon stop your skimmer?
Hi,
When an oily substance is added to your tank water (via frying, your hands and etc), the skimmer does not work as well because oily substance prevents the air bubbles from collecting the bad...
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Forum: Reef
02-09-2002, 09:06 PM
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Replies: 6
Views: 1,745
Deep sand beds
Hi,
Sand should be fine as long as it is silicate sand. Unfortunately, it is hard to tell if you have silicate sand if you are at a beach. The risk is that you'll have some sand that will leach...
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