Ok well since my first lengthy post to you was lost here goes.
"those bulbs are for aquarium use. are you sure? and how many warm tubes to cool tubes? "
Marketing has nothing to do with spectral quality. I like URI because they are the longest lasting VHO lamp Ive ever used.I have some that are nearly 5 years old and still burn.
Not that they are anywhere near as bright as they were when they were new.
"what can i get a fan? the back of the tank have about 2 inches of open space, theres also a 1.5 inch hole in the back. this has a bulkhead for it because it used to be a saltwater aquarium.
where would i get a small fan? are they any extremely small ones i can use on the inside? *i would be great to ahve magnetic ones. like the fan part goes inside and is held on to the glass by a magnet on the outside. "
Ill give you a link in a second, first I wouldnt recommend using acomputer fan unless youve got some way of running it with out a power supply, this would be verywasteful.
Comp fans run on DC the power in your house is AC you want to find an AC fan for the safest mode of operation. The manner in which I would suggest you mount it is this:
You want the fan to be placed so that it is only circulating air not exchanging it. I like to mount them to the underside of the glass top by drilling 4 holes in the glass top, youll need a special drill bit for this. Then using four 3-4" long machine screws and four aluminum spacer stems and eight nylon washers, these are use on either side of the glass to assist in dampening vibration. I like to use a little pure silicon around the glass to further assist in dampening. The fan should ultimately be oriented so that it is blowing air up against the glass top this way youre allowed maximum circulation without drying your plants out.
You can control the exchange of air by manufacturing some sort of an adjustable cover for the back of your terrarium, this way you can fine tune the amount of air exchange inorder to maintain proper humidity and temperature levels while maintaining proper air circulation.
Here is that link
Its the second column from the bottom, first item, 100 CFM Axial Fan Active Air Vent Blowers $34.95.
"and are you saying it would be bad to add the 2 other tubes? i would rather use them since they are sitting in the basement and are elss that a year old, and ti would give me a much wider variety of bulbs to use.
on all the sites i've been to, they say that nepenthes thrive under high temps. with 30-35 being excellent. i'd prefer 35 since it gives me more room for error. this tnk will house only lowlanders, no highlanders."
Not bad its just more work thats not entirely necessarry, I just think youve got plenty of light as it is.
You will find that constant temps in the 90s will eventually stress your plants they will also over grow your tank in no time.
The trick to maintaining a terrerium is balancing all of your conditions indorder to maintain lush yet managable growth.
You wouldnt want it to become a chore.
I have found as have many others that plants produce much more consistently under less stressful conditions.
I would recommend daytime temps in the mid to upper eighty's with a 5-15 degree drop at night.
Two of the smallest foggers would be plenty in an enclosed tank such as yours. Youll probably find running them on a timer or humidistat necessarry inorder to keep your humidity with in respectable levels.
I would also highly recommend you get a digital Hygrometer/thermometer combo with min and max memory capabilities. these can usually be found locally at electronics supply stores. Otherwise here, http://www.charleysgreenhouse.com/catalog....d=6620.