Common Misconceptions In the Hobby
- Thread starter Peter Eichler
- Start date
RichConley
New member
On some tanks, yeah. On many others, its more electricity and heat.
Lets see a pic of your tank Rich
Chris
You dont want to see a pic right now. Its been moved twice since July, and theres a good chance its being moved again in a month or two. I hate my life.
melev
Well-known member
The comments mbbuna made about clams is in line with what James Fatherree was presenting at our Next Wave conference last January. Unfortunately for me, I wasn't able to get much from his talk because so many other things had to be addressed, and I only heard snippets. I'd hoped to watch his presentation later, but our recordings weren't good enough (esp since his microphone kept cutting in and out).
I kept a beautiful Maxima in my 29g under 165w of PC lighting for 2 years, and it grew about 3" in that time. I dosed phytoplankton every other day.
In my 280g reef, I have a Maxima now that is over a year old. I never dose phytoplankton, and it has easily grown 2" if not more. It is down near the substrate under a combination of 250w (10,000K) & 400w (20,000k) bulbs. It looks great.
http://melevsreef.com/pics/07/07/td_maxima.jpg
I kept a beautiful Maxima in my 29g under 165w of PC lighting for 2 years, and it grew about 3" in that time. I dosed phytoplankton every other day.
In my 280g reef, I have a Maxima now that is over a year old. I never dose phytoplankton, and it has easily grown 2" if not more. It is down near the substrate under a combination of 250w (10,000K) & 400w (20,000k) bulbs. It looks great.
http://melevsreef.com/pics/07/07/td_maxima.jpg
you assume wrong, and BTW i was just throwing those comments out there for all to see.
Fatherree 2006
"let's take a look at some CZAR and CZARG values for some small to clear up any possible confusion. the smallest clams offered for sale to hobbyists are usually in the 2.5 range, but far more "small clams" are in the 3.8 to 5cm range. keep this in mind when you see the CZAR and CZARG numbers going up.
Mingoa (1988) found that 1.75cm gigas specimens (smaller than what you can buy) had an average CZAR values of only 92% under bright sunlight. close, but not quite enough C/E from the zooxanthellae for basic maintenance. however that was in 1988 and Mingoa, using unpublished data from Griffiths, had chosen a translocation value of 32%. so you can see the same thing happening for these little clams. change the translocation value to 95% and the CZAR values will triple to 273%.
in addition, Fischer et al. (1985) reported a CZAR value for gigas (using a transference value of 95%) of 149% for 1cm specimen, 259% for a 1.15cm specimen, and 318% for a 1.55cm specimen. all smaller then what you can buy. then, Klumpp&Lucas (1994) found CZAR to be as high as 178% for 2.2cm derasa and 2cm tevoroas, with CZARG values of 140% for both, while data from Klumpp&Griffiths (1994) shows a CZAR of 265% and CZARG of 191% for 4.2cm gigas, 233% and 206% for 2.4cm crocea, 186% and 118% for 4.2cm squamosa, and 300% for 4cm hippopus"
so according to that they are getting C/E from photosynthesis just fine.
melev
Well-known member
I'd like to know about about Live (bagged) Sand at the LFS. It promises to have beneficial bacteria in it, but it is hard for me to believe it is alive and doing well when it is air-tight and stored in warehouses and then on shelves at the LFS.
The sand is clean, and I've used it a few times, but live? Myth?
The sand is clean, and I've used it a few times, but live? Myth?
MiddletonMark
Premium Member
Marc -
Would that equate to the bacteria-in-a-bottle products?
I mean, Zeo/Prodibio/etc/etc all sell bottles of bacteria, air-tight, stored in warehouses [shipped internationally taboot] ... that is claimed to be plenty live.
Would sand-products be that much different?
Seems like a very similar process/method to me ....
[I looked really hard at both, but I couldn't see any bacteria
]
Would that equate to the bacteria-in-a-bottle products?
I mean, Zeo/Prodibio/etc/etc all sell bottles of bacteria, air-tight, stored in warehouses [shipped internationally taboot] ... that is claimed to be plenty live.
Would sand-products be that much different?
Seems like a very similar process/method to me ....
[I looked really hard at both, but I couldn't see any bacteria
]
Originally posted by Ninong:
Juvenile clams in their natural environment do obtain a substantial portion of their carbon requirements through filtering -- dissolved organic matter, dissolved particulate matter, phytoplankton, etc. As they mature, more and more of their energy needs are met via photosynthesis of their symbiotic zooxanthellae. That's the way it happens in the wild. I assume you have no argument with this?
OK, so I guess that means that you are saying that juvenile clams don't obtain a substantial portion of their carbon requirements through filtering? Is that your position?
Website of Dr. Rick Braley, an Australian tridacnid expert who has been studying and breeding tridacnids for the past 25 years. Looks like Dr. Braley doesn't agree with you.
P.S. -- I have nothing against Jim Fatherree and I haven't seen his book, but isn't he a geologist and amateur photographer who managed an LFS at one time?
Juvenile clams in their natural environment do obtain a substantial portion of their carbon requirements through filtering -- dissolved organic matter, dissolved particulate matter, phytoplankton, etc. As they mature, more and more of their energy needs are met via photosynthesis of their symbiotic zooxanthellae. That's the way it happens in the wild. I assume you have no argument with this?
OK, so I guess that means that you are saying that juvenile clams don't obtain a substantial portion of their carbon requirements through filtering? Is that your position?
Website of Dr. Rick Braley, an Australian tridacnid expert who has been studying and breeding tridacnids for the past 25 years. Looks like Dr. Braley doesn't agree with you.
P.S. -- I have nothing against Jim Fatherree and I haven't seen his book, but isn't he a geologist and amateur photographer who managed an LFS at one time?
<a href=showthread.php?s=&postid=10653938#post10653938 target=_blank>Originally posted</a> by RichConley
On some tanks, yeah. On many others, its more electricity and heat.
You dont want to see a pic right now. Its been moved twice since July, and theres a good chance its being moved again in a month or two. I hate my life.
IMO moving a reef tank is worse than moving a house.
Do you have any previous pics you would like to share?
How about you Peter? Want to share a picture of your tank?
Chris
Dack77
New member
Regarding Jim Fatherree's background, according to Reefkeeping.com
"earned degrees in Geology from Mississippi State University and the University of South Florida, with a specialization in invertebrate paleontology"
I would prefer to work from studies done by people who have extensive knowledge (masters, phd's) in their specific field. But I also would not just throw out his findings either. Also, I dont know why people are arguing over if they need to filter feed or not. If they live both ways and appear to be healthy both ways, does it really matter, because it sounds like someone is trying to split hairs....
"earned degrees in Geology from Mississippi State University and the University of South Florida, with a specialization in invertebrate paleontology"
I would prefer to work from studies done by people who have extensive knowledge (masters, phd's) in their specific field. But I also would not just throw out his findings either. Also, I dont know why people are arguing over if they need to filter feed or not. If they live both ways and appear to be healthy both ways, does it really matter, because it sounds like someone is trying to split hairs....
Peter Eichler
New member
Still very much a work in progress and just not coming up on a year old. Nothint spectacular but I like it and I'm having fun going slow only getting things that really strike me.
http://www.reefcentral.com/forums/showthread.php?s=&threadid=1128907&perpage=25&pagenumber=1
Last edited:
im not arguing and i dont think Ninong is either.
the name of the thread is "common misconceptions in the hobby"
for many years it has been said that if clams under (fill in the blank) inches are not feed phytoplankton they will die. many rationals have been given from, there mantles are not fully developed, there mantles are not large enough, there mantles dont house enough zoox, and these are all misconceptions.
<a href=showthread.php?s=&postid=10654944#post10654944 target=_blank>Originally posted</a> by Peter Eichler
Still very much a work in progress and just not coming up on a year old. Nothint spectacular but I like it and I'm having fun going slow only getting things that really strike me.
http://www.reefcentral.com/forums/showthread.php?s=&threadid=1128907&perpage=25&pagenumber=1
Thanks for sharing Peter
Love the clowns in the carpet.
Chris
virginiadiver69
New member
Speaking of clams...Please advice me of some sources of beginner clam info. I will look for the book that Rich recomended. Any others I should look for.
davidryder
Claris or Elliot?
Phew, I was gone a few days and come back to an additional 5 pages!!
To your comment, I have a small correction. The effect of cured fish being caused by dosing garlic is a cause and effect relationship. A correlation is described as positive or negative, such as a positive correlation between age and joint pain.
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