Incandesent light bulb wattage questions

Thanks for the info, Ill probably just max it out and get the 25w cfl. Just one more trip to ace to make.

So what would one of these do over a tank? In other words how do halogens watts compare? 23 Watt - PAR38 - CFL - Compact Fluorescent Reflector - Full Spectrum 5000K


On a side note, could I put a series of tiny 1/2" diameter perferated pvc under the gravel in my 5.5g and hook it up to an airpump so that I don't need to gravel vac as often. Like a mini under gravel jet?
 
I understand it doesnt just magically get stronger as well. It just seems like alot of light on your tank when you don't understand how the different lights stack up next to each other.
 
I'm not sure where halogen is coming from; that sounds like a description for a regular CFL. It would be fine for your tank. I wouldn't fool with halogen lights.
 
Its a standard cfl but it was not rated as comparable to an incandescent it was compared to a 90watt halogen and wondered how that stacked up. Wasnt thinking about it reall except in the future on large tanks (200+ in a fishroom). It was a replacement bulb for stadium lighting 4.8 inch diameter.
 
Ah, I looked it up and it is a halogen replacement bulb. (CFL) Probably would make a great light if retrofitted into a large tank's canopy. (Bulbs paired up and then spaced 10-12" apart the length of the tank) Definitely would be more cost effective to run, not to mention much cooler. I haven't heard of many people using halogens on planted tanks, however. I wouldn't think they'd be very effective. Metal Halides or High pressure sodium lamps are more commonly used in that category of lighting.

I wouldn't worry too much about the under-gravel jet..though the concept is much like a RFUGF. If you were to do it, I'd pump water rather than air through the substrate.
 
Ok, I thought about that the water would probably flow through it better but alas I don't have a powerhead so I'm SOL maybe I'll get one if I get the job I want at petland.
 
I thought that those bulbs would also be a great alternative to having many many small lightbulbs.

I thought they would be perfect for a fishroom with built in tanks where you had plenty of room behind the wall to put in large filters and lights. It would also provide ALOT of lighting to the work area behind the tanks for maintenence. Nothing better than being able to see what your doing.
 
Powerheads are pretty cheap; you'd only need a tiny one, which should run you under $15.

I think if you were lighting multiple tanks, straight-tube bay fixtures would make more sense than that spotlight-type bulb (unless you are going for some dramatic lighting effect).
 
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