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If you plan on using the average of the three readings, you could get a nice inaccurate average. Inexpensive thermometers are not accurate - most are +/- 1 degree C (+/- 1.8 degrees F), so your 78 degree F reading could easily be anywhere from 76 to 80. Check out this Cole-Parmer list for...

The Eheims can be run either way.

Olivier, Somewhere north of Route 46, before it branches into 3 and 46, there's a plastic fabricating shop where I bought some Weld-On #16, maybe two years ago. I can't remember the name of the place or exactly where it is (Great Notch?). I tried to find it again last month but failed. I've got...

Does vinegar really help? I thought a bristle worm's bristles were silica based, not carbonate based.

I'd recommend an Eheim 1262: http://premiumaquatics.com/store/merchant.mvc?Screen=PROD&Store_Code=PA&Product_Code=EHEIM1262&Category_Code=

Used Glass You guys should see what Feng (Red Sand) has been doing with used glass. He's making his 500G tank (on the left when you enter the store) thinner (front to back) and making a 10' frag tank with the leftover glass.

Here's two very interesting eBay auctions for some lucky NJ reefer: Fish - big Tangs, big Rabbit, Cleaner, etc. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180479204657 Tank - 260G, stand, misc equipment...

Any reason it wouldn't work on Aiptasia too?

I don't know what the tank's footprint is, but you could probably cut it down to 12" to 15" high and make a really great frag tank out of it.

Anyone know if you can calibrate these colorimeters?

Get the pieces cut exactly to size when you buy the plastic. Note that some places have limits on how small they'll cut (because of the danger to fingers). If you're a perfectionist you may want to use a blowtorch to flame polish the edges.

Sold! Mods please delete.

I've got some PCs, but I wish they were T5s.

The epoxy probably goes for $4 or 5 at Home Depot, but may be throwing good money after bad. I think you've got a better chance with it than with a cyanoacrylate, but it is probably a crap shoot.

I'm not familiar with the Sea-Flo, but it sounds like the prop should not be rotating independently of the magnet. I've tried Crazy Glue in a similar situation, but it has no shear strength and will fail. You might try a two-part epoxy glue (not a two-part epoxy putty).

Hach P04 Colorimeter I'm selling off my Hach phosphate colorimeter for $150 shipped. The testing range is 0.02 to 3.00 ppm. Here's a link to the "kit"...

That's great! If there's anything you Ecotech Marine owners really need a lot of, it is spare parts!

There's Hanover Pet (a.k.a. Aquatic Visions) in East Hanover: 973-386-0885 200 State Route 10 East Hanover, NJ 07936 They're in the strip mall by the Home Depot. And, there's Kam Man in the same mall where you can buy nori.

PC? VHO? T5? Mogul Halide? DE Halide?

AF usually has a couple of different kinds of red algaes attached to rocks.