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If finding a ballast with the exact same size as the old is not a huge deal, check out the workhorse ballasts... I've had nothing but good experiences with them and they are very affordable.

The metabolism of aquatic life is going to slow down at lower temperatures, making things seem "barely alive." Cold water is far better than warm, as oxygenation isn't a problem. I've had tanks drop this low on numerous occasions and have never lost an animal as a result. You'll probably be...

Quote: Originally Posted by rainbow grouper oh forgot to say i get massive c**p from my people in my school about my intrests at school everyone calls me a nerd insults and everything else cause i love things like fish When I was your age, I built an alarm system for my desk at school. Ask me...

Quote: Originally Posted by 2Quills Crazy things running through my mind. Resistors would seem as though they should be a MUST have for running parallel strings after this discussion. Would you feel the same for a single series string? The vast majority of these diy builds that I see aren't...

Quote: Originally Posted by 2Quills So I'd be looking for a 10ohm / 10-20watt resistor. But it's best to go with a higher safety margin so a 10 ohm / 20 watt resistor would be more appropriate. And this would limit the current able to pass through each string to 960mA. So in a case where I...

I'm not sure where you got the 4.8 in your calculations. The "V" in the power calculation is the difference in voltage between supply and LED total. Your LED total is 38.4, so 48 - 38.4 = 9.6, so: 9.6(sq) / 10 = 9.21 watts. I think what happened is you used my voltage number from my...

Quote: Originally Posted by 2Quills Question for you SCSI. Wondering if this idea is doable. Ohms law states that the voltage (V) across a resistor (R) is proportional to the current (I) where the constant of proportionality is the resistance. (I think I said that right) Equivalently ohms law...

Quote: Originally Posted by 2Quills I'm not even gonna go there lol. That isn't actually my diagram, it's just one of many floating around that people have been using a general guideline for some of these builds when running parallel strings. As far as I know the main reason why folks have...

Just to comment on the earlier posts about fuse locations... Circuit design best practices dictate placing fuses as close to the power supply as possible. A fault occuring between the fuse and the power supply would not be protected, so the fuse should always be where it will protect the...

They are not outlets, they are breakers. What year was your home built?

We use Wells Fargo too.. I have two checking accounts with them. One is a "free" checking account that I keep for it's ties to my paypal account, the other is our main checking account, which is a premium account we have, with the requirement that we maintain certain minimum balances. The...

Safe... sure. The argument of "no cost is too much for safety" could be made here as well, but the at issue is whether or not, is whether the statistical probability of a fire that could have been prevented with an AFI justifies the cost of so many of them in so many homes. Regardless, my...

Quote: Originally Posted by acrylic51 AFCI's is what was eluding me.... I knew SCSInet had talked about it ages ago!!! An AFCI (Arc-Fault-Circuit-Interrupter) is a device that senses the harmonics generated by arcing, and cutting the power. They also look for high current spikes caused by a...

Quote: Originally Posted by acrylic51 Your correct Corey that's why I've never used them because I usually have something after that outlet, but I'm going to have to call my brother-in-laws who are master electricians and get more info, but I'm sure there is a way to wire to not affect the...

Fish stores are notorious for telling customers pretty much anything they want to hear to make a sale. If I had a dime for every time I've heard of an anemone getting sold to someone with woefully inadequate lighting.... It's best to do you own research online for a species you are interested...

Quote: Originally Posted by 2Quills Cool, I trust you found the right components that you're looking for? Digikey is definitely one of my suppliers, but you may want to keep Mouser in mind... IMO they are much more "friendly" to DIYers and small quantities.

Quote: Originally Posted by sprieto I thought LED did not produce enough wattage for Reefs? I have read LED's stay cooler....but I was not sure how they measure up to T5's. An LED does not produce enough... but a whole pile of them do. LEDs are far more efficient than anything else out...

Quote: Originally Posted by gio28 Actually, I never even thought about grounding it, but I will now haha. thanks guys and I dunno SCSI, ground wire sounds like it could be used to strangle someone If it's metal, has anything to do with electricity, and is located wtihin 500 miles of a...

$150 will definitely do the job. It's difficult to go wrong with RO systems. They are one of the rare exceptions where no matter what "brand" you go with - even generic - you are usually getting pretty much the same thing. Google air water ice and you should find what you are looking for...

Quote: Originally Posted by SnakeBlitz33 No ground? Maybe he grounded the conduit off-camera. Read: Gio, ground your conduit. I think minors can buy ground wire.