Two Clam IDs from LFS
- Thread starter halperin
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Reeferdude56
Active Member
First one is a derasa not a squamousa. The second though is definitely a maxima.
Tom@HaslettMI
Active Member
Coralsdaily
Well-Known Member
This. And just curious what kind of light you use? those Tahitian Maximas require STRONG light for long term health, 400W MH would be ideal
halperin
Community Member
How can u tell if its a Tahitian maxima vs whatever other kind there are? Which type of maxima requires the least light?
Why wouldn't you pay too much for the first clam. What's wrong with it?
Why wouldn't you pay too much for the first clam. What's wrong with it?
jzaso
Active Member
Really can not tell from those pics-need to look @ valve shape symetery to hing -incurrent excurrent siphon scutes, for proper ID first one could be a squamosa 2nd could be a crocea-maricultured croceas will have scuting wild typicaly not
TJ's Reef
Valuable Member
I agree with jzaso ^above^ but most likely what was stated in being T. derasa and T. maxima.
A bit on lighting for these Clams in general is that they host some of the same zoox as Macro algae and rely much more on the Red 625-670nm spectrum than Corals do. So many tanks nowadays are lit with fixtures lacking in this spectrum from LED's to 20K MH that especially for Clams coming in shipping stressed and placing them under light they get little energy from can be damaging or even fatal.
Cheers, Todd
A bit on lighting for these Clams in general is that they host some of the same zoox as Macro algae and rely much more on the Red 625-670nm spectrum than Corals do. So many tanks nowadays are lit with fixtures lacking in this spectrum from LED's to 20K MH that especially for Clams coming in shipping stressed and placing them under light they get little energy from can be damaging or even fatal.
Cheers, Todd
Interesting! I had not heard that about the reliance on red spectrum. Do you have sources you can link? I have read quite a bit of literature about giant clams and must have missed it.
TJ's Reef
Valuable Member
I'll see what I can dig back up on it. I came across it in a off-hand way where article was stating the the Giant Clams tested had significant amounts of Chlorophyll B which is primarily associated with terrestrial plants. As an experiment I have placed a new smaller Gold 2" T. maxima in my Frag Tank directly under a Red emitter and seems quite 'Happy' and looks pretty good to.
Cheers, Todd
Cheers, Todd
Thanks! I dug around for a while and looked at around a dozen papers but couldn't find anything on it, or even specific species of Symbiodinium found in giant clams. This is interesting though, I have had two large blue maximas over the years, no idea if they are Tahitian, and no reason to believe they were, but after buying from the LFS both of their mantles darkened significantly. Not in a bad way, they became more intense, and very notably so. They both lived and grew well, I still have one, the other was wiped out when I stupidly didn't QT and got some sort of clam infection that killed all my clams in that system. Both under 350-500 PAR led lights. I wonder if the intensity change is a shift in population due to what you wrote above. Interesting.
Rydogg420
Active Member
Nothing wrong with it at all. I was just saying if you weren't sure what it was and he sold it as something else, it might have been more money then it should have or the other way around. Usually it costs more money then it's worth if it's being sold as the wrong species.. that's all. I've seen a lot of people pay too much for things when they thought it was something else or sold as the wrong species. Zoas are a very good example of that. Lol.
