Recent content by Ninong

My little 120-gal tank has a 19 mm bottom and 12 mm sides. If I were having a tank built to the dimensions that you're talking about, I would make both the bottom and the sides 19 mm. I'm not comfortable with telling you what you should do, therefore I simply told you what I would do. This is...

Actually it's not glass, it's acrylic. It's 10m deep, 35m wide, and 27m long. The thickness of the acrylic viewing panel is 600mm (23.622"). It holds 7,500 m3 of water. That's according to their original website when it was first opened three years ago. :)

The problem lies in the fact that they are not accustomed to taking food from the water column in the wild. They feed on benthic invertebrates and polychaetes. They are used to picking at the substrate for their food, not snatching it from the water column. I agree that you should try a...

NO! I don't know of any U.S. or Canadian manufacturer who would be willing to build that tank with 12 mm glass. As a point of reference, I have discussed this question with a custom tank builder in Canada and he told me that the largest he is willing to go with 12 mm glass would be 96" x 24" x...

Perhaps Matt could provide us with links to studies that show that 600 ppm Bromine is not toxic to aquatic biota?

Hi Habib, I didn't even notice the bromide values because bromide wasn't reported in Hovanec's previous study and I was just making comparisons between Matt's new study and Tim's previous results. I suspect that you may be right about the manganese values being the result of a typo because it...

You would have to be more specific than that. Some sea stars prey on almost anything but many do not. Which of the thousands of species are you asking about? Sure. These sea stars eat only sand bed infauna. They will not touch your clams. They do require a very large area of open sand bed...

Am I the only one who wonders how he got a measurement of 180 ppm Mn in Oceanic salt? That's absurd. And what about the 2 ppm Pb in Crystal Sea Bioassay salt? Manganese is toxic to marine life at 1/10 the level Matt is reporting for Oceanic salt and lead, according to the USGS, is toxic to a...

Matt, Mn at 16.0 ppm and Pb at 2.45 ppm is toxic to this oyster: http://www.springerlink.com/(4a0gb455tggnuu55o5g5piu0)/app/home/contribution.asp?referrer=parent&backto=issue,2,9;journal,396,466;linkingpublicationresults,1:400441,1 And according to the USGS, lead at concentrations of 1 - 5.1...

How about your manganese measurement in Oceanic salt? Don't you think 180 ppm Mn is rather high? Even calcium is only 411 ppm in NSW. NSW concentration of Mn is usually given as 0.0004 ppm. P.S. -- I was using a 1968 reference for Mn at 0.0004 ppm. Tim Hovanec used a 1998 reference in his...

I wonder why Matt's test results seem to be higher across the board when compared to Tim's test results? Both were measured with ICP-MS. It seems odd that one test would measure 79 ppb of something (zinc in Oceanic) in a salt that the other test measured none, unless this is a reflection of...

I decided to compare some of the trace elements that were tested in Dr. Tim Hovanec's study (Advanced Aquarist, Vol. 3, Issue 9, Sept. 2004) against the results for the same salt brands in Matt Marulla's study (Advanced Aquarist, November 2005). Starting in alphabetical order, Aluminum was...

It's been 27 months now. Is no news good news?

It is described by Tony Gill and Gerald Allen here. Photos of both the male and female (taken by Takamasa "Tono" Tonosuka) appear on page 10.

Twenty-six months and counting.