JeffW said:
OK then Skip... you mentioned that 290 GPH is "getting by" as far as water exchange. So, what I would like to know is, what is optimal? Is there a calculation or calculator out there I can use to determine the optimum number?
The reason that 290gph is just getting by in the cubes is that there is one pump that's acting as return, and current. Generally you want your return pump to be able to cycle your entire tanks water volume at least 10x an hour. So with a 24g tank, a 290gph pump is sufficient for this purpose. However you also want a certain amount of random current, and if you're trying to use your return for that as well, then it may be a bit under-powered.
JeffW said:
Another question qoing back to RO/DI Water. Now, I am assuming that this is what I would buy if I bought a big jug at Culligan, like for a water cooler. Of course, I don't want to be storing big bottles of water, nor do I want to be spending that money.
RO, or RO/DI water is pretty much a necessity for marine tanks, and reef tanks in particular. Culligan water is usually just spring water, and is not pure enough.
JeffW said:
Soooooooo... how much are we talking here? And where does one purchase such a critter? Is this a huge appliance, like a water softener? Or something like a "PUR" fliter that I can just attatch to my faucet head?
http://www.buckeyefieldsupply.com/showp ... 67&Sub=166
It can attach them under your sink. I'm not particularly handy when it comes to plumbing, but I've been able to install/uninstall/reinstall mine with basic tools and very little head-scratching. There is a product you can get from most major pet stores that will give you RO filtered water by attaching it to your faucet. But the filter is only good for about 30-50g of water. It's a lot less cost effective than an RO/DI unit.
For most nano tanks an RO/DI unit really isn't necessary though because you can go to the LFS and buy RO/DI water, and pre-mixed salt water for about 50cents a gallon for RO/Di, and a buck a gallon for the salt. Hauling 5-10g jugs of water for a large system is a pain. But when you're talking nanos 20g of water will last you a month easy, so it isn't as big a deal.
JeffW said:
Let's go back to lighting. It still seems that this upgrade basically adds more CF/PC lights. Are these HO or VHO bulbs? And again, what about T5? That seems to be the big buzzword in aquarium lighting right now.
There isn't enough space in any of the cubes for VHO, or T5 bulbs. They simply don't make those types of bulbs in a lenght that will fit. So yes all lighting upgrades on them will be PC. Some folks have tried 70w MH upgrades, but I haven't heard of anyone DIYing one for a cube that didn't have heat issues. I know they sell them on nanocustoms, so buying one of their upgrades might be an option for you.
JeffW said:
Now, lets also talk about filtration. What I read on another board was that with the Nano cubes, you should remove the ceramic media and the bio-ball media it comes with and use "live rock rubble" in it's place. I guess this is where my inexperience truly shines through. WHY? If I do that, the only thing "filtering" water will be, um, rock. I don't understand how that works.
Liverock is porous. It provides lots of surface area for aerobic bacteria towards the surface, and deep within it lot of surface are for anaerobic bacteria. These type two types of bacteria are whats responsible for your nitrogen cycle.
JeffW said:
Last question for this particular post. With that much light, and readin other posts, do I need a chiller?
It depends on how you choose to upgrade. I believe that all the upgrades on nanocustoms are designed to work without needing a chiller.
But powerheads, pumps, lighting all contribute heat, so it's possible.
A lot of your questions have been answered many times. Try using the search function. Unlike RC's, the one here always works. You might be able to answer a lot of your questions without having to spend the time writing a long post. We do a good job here of not flaming people for not searching first, but on a lot of the other boards, a thread like this, with lots of beginner questions would generate lots of rude comments. Believe me I've gotten flamed on RC, and on nanoreefs a few times. :lol3:
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