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Forum: Lighting, Filtration & Other Equipment 06/19/2007, 03:53 PM
Replies: 1
Views: 181
Posted By cduran02
Need sugestion on a skimmer

I have a 45 gallon tank, that Im currently re-building. I want to build a compact system with no sump. Im put a hang on filter (carbon filter only) and Im looking for a very good hang on skimmer. Any...
Forum: Do It Yourself 03/09/2006, 04:51 PM
Replies: 8
Views: 218
Posted By cduran02
look in the yellow pages for local electronic...

look in the yellow pages for local electronic supplies stores (like the ones that sell to technicians). Most of the online stores, Digikey, etc. have minimum order requirements or they will charge up...
Forum: Do It Yourself 03/04/2006, 02:29 PM
Replies: 22
Views: 403
Posted By cduran02
Im having this problem too, only it happens...

Im having this problem too, only it happens periodicaly. About every 20 minutes it lets out a burst of micro bubbles.

Im going back to powerheads now so I can use a DIY controller.
Forum: Lighting, Filtration & Other Equipment 02/28/2006, 11:57 AM
Replies: 11
Views: 196
Posted By cduran02
You can also try mcmaster.com, or even...

You can also try mcmaster.com, or even grainger.com. We've gotten Hayward actuated ball valves for about $250 if I can remember corectly. These were 1" valves.
Forum: Lighting, Filtration & Other Equipment 02/22/2006, 04:31 PM
Replies: 30
Views: 884
Posted By cduran02
pH might affect in the uS/cm ranges but sea water...

pH might affect in the uS/cm ranges but sea water is up in the mS/cm ranges, thats an order of magnitude larger. That change due to pH is minute.
Forum: Lighting, Filtration & Other Equipment 02/22/2006, 04:28 PM
Replies: 30
Views: 884
Posted By cduran02
The best person to explain this would be Randy...

The best person to explain this would be Randy over at the Reef chemistry forum.

Ive been using conductivity to measure salinity of my salt mix for over a year now. Ive verified my readings with...
Forum: Lighting, Filtration & Other Equipment 02/22/2006, 04:08 PM
Replies: 30
Views: 884
Posted By cduran02
And heres a link to NOAA's coral monitoring...

And heres a link to NOAA's coral monitoring program, they list somewhere in there the equipement they use to monitor reefs. http://www.coral.noaa.gov/
Forum: Lighting, Filtration & Other Equipment 02/22/2006, 04:03 PM
Replies: 30
Views: 884
Posted By cduran02
Here are a couple more sites ...

Here are a couple more sites
http://www.aecos.com/CPIE/TDS.html
http://hyperphysics.phy-astr.gsu.edu/HBASE/Chemical/seawater.html
Forum: Lighting, Filtration & Other Equipment 02/22/2006, 03:47 PM
Replies: 30
Views: 884
Posted By cduran02
Check out this link >>...

Check out this link >> http://sam.ucsd.edu/sio210/lect_2/lecture_2.html theres a better explanation in there than what I can offer. Here's an excerp from it

4.2. Conductivity
Definition....
Forum: Lighting, Filtration & Other Equipment 02/22/2006, 08:53 AM
Replies: 30
Views: 884
Posted By cduran02
When you do decide to get one, look on ebay. This...

When you do decide to get one, look on ebay. This one cost me about $200 with shipping and it was used. A new model goes for about $500 or more, there are a lot of conductivity meters that are...
Forum: Lighting, Filtration & Other Equipment 02/21/2006, 05:04 PM
Replies: 30
Views: 884
Posted By cduran02
Conductivity of sea water is 52 mS/cm. I can...

Conductivity of sea water is 52 mS/cm. I can measure that directly with the conductivity meter, conductivity meters are what NOAA use to monitor the salinity of sea water.

Sea water is composed of...
Forum: Lighting, Filtration & Other Equipment 02/21/2006, 04:56 PM
Replies: 30
Views: 884
Posted By cduran02
Well I paid for the convinience. Conductivity...

Well I paid for the convinience. Conductivity meters are also easy to calibrate, all you need is a standard solution. Calibrating a refractometer requires you to use RO/DI or Distiled water (which...
Forum: Lighting, Filtration & Other Equipment 02/21/2006, 02:35 PM
Replies: 30
Views: 884
Posted By cduran02
I use a Thermo Orion conductivity/salinity/TDS...

I use a Thermo Orion conductivity/salinity/TDS meter. Most accurate of all methods and easiest to use, just dip the probe in the water and read the screen. Got mine on ebay for $200, worth every...
Forum: Lighting, Filtration & Other Equipment 02/20/2006, 10:05 AM
Replies: 13
Views: 492
Posted By cduran02
BTW, I have the enaly that without the built in...

BTW, I have the enaly that without the built in pump. I use an external air pump, if that goes bad I can just replace it and with an air valve I can controll the output if I wish to do so.
Forum: Lighting, Filtration & Other Equipment 02/20/2006, 10:03 AM
Replies: 13
Views: 492
Posted By cduran02
I run my enaly twice a week. Each time I run it,...

I run my enaly twice a week. Each time I run it, I run it for 24 hours. Its hooked up to my Remora Urchin through a small hole I drilled rigth next to the spray nozel. Everything is doing fine in my...
Forum: Do It Yourself 02/16/2006, 01:56 PM
Replies: 5
Views: 256
Posted By cduran02
I have an idea....instead of feeding water into...

I have an idea....instead of feeding water into the fuge, just drill small holes into the sides of the fuge. If any of the macro grows out through the holes your herbivorse would just eat from there.
Forum: Lighting, Filtration & Other Equipment 02/16/2006, 01:51 PM
Replies: 23
Views: 632
Posted By cduran02
Could be the rating the manufacturer gives is for...

Could be the rating the manufacturer gives is for fresh water aquariums, where you dont have so much heat generated from lights and multiple pumps.
Forum: Lighting, Filtration & Other Equipment 02/16/2006, 01:41 PM
Replies: 23
Views: 632
Posted By cduran02
Pumps keep mine warm, and I use a temp controlled...

Pumps keep mine warm, and I use a temp controlled fan to cool by evaporation when the weather gets hot. Save a ton on electricity.
Forum: Do It Yourself 02/16/2006, 11:48 AM
Replies: 162
Views: 15,143
Posted By cduran02
A bigger problem with ISE's is that they require...

A bigger problem with ISE's is that they require a lot of calibration. Usually before each use. This means using them in a controller for continuous monitoring would be difficult. There are also...
Forum: Advanced Topics 02/14/2006, 11:17 AM
Replies: 2
Views: 216
Posted By cduran02
You could go to Omega.com, they have plenty of...

You could go to Omega.com, they have plenty of controllers for pH, and ORP. As for the nitrates, nitrites, amonia, etc.. Those are Ion selective probes (ISE's) and those probes are made for lab use,...
Forum: Do It Yourself 02/03/2006, 02:59 PM
Replies: 7
Views: 372
Posted By cduran02
I started mine using a pic18F2620 completed the...

I started mine using a pic18F2620 completed the main CPU board, but started remodeling my house and decided to finaly finish my masters so that took a back seat for a while. In the mean time I...
Forum: Used Equipment & Drygoods Selling 01/10/2006, 03:16 PM
Replies: 1
Views: 246
Posted By cduran02
SOLD

SOLD
Forum: Florida Marine Aquarium Society (FMAS) - Miami/Ft. Lauderdale 01/10/2006, 03:15 PM
Replies: 2
Views: 172
Posted By cduran02
SOLD

SOLD
Forum: Used Equipment & Drygoods Selling 01/10/2006, 11:34 AM
Replies: 1
Views: 246
Posted By cduran02
ICECAP 660 Balast with heat sink for sale

Im selling a brand new in box never used ICECAP 660 flourecent balast. Im asking for $120. Like I said the balast was never used, I got it because I was going to build my own canopy, but then I got a...
Forum: Florida Marine Aquarium Society (FMAS) - Miami/Ft. Lauderdale 01/10/2006, 11:31 AM
Replies: 2
Views: 172
Posted By cduran02
bump

bump
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