Clams and nano tanks
- Thread starter dmirza
- Start date
fishieness
New member
yeah, if somethign goes wrong, its more likely to be a huge mistake. The main thing is if you have halides, youa re going to experience a heck of a lot of evaporation. salinity swings. clams dont do well to those.
80 watts across 20 gallon is not likely enough light. Not sure, but you probably won't have enough of the right spectrum to "feed" the clams. These critters rely mostly on light for energy, they also need to filter feed. There is some good reading in these threads about tridacna husbandry. I recomend browsing through that before adding a clam.
Bottom line: I would say you're better off going with marine species that don't have such a high lighting requirement given your set up.
Bottom line: I would say you're better off going with marine species that don't have such a high lighting requirement given your set up.
fishieness
New member
a good point, and then you also have to add in the size range of derasas. they gat as big as most nanos.
fishieness
New member
well it is both. photsynthesis occurs at some spectrums better than others. in plants it occurs the best in red and blue spectrums. And the worst in greens (that is why it refelcts green light energy).
but in this case, they were talking about PAR
lol
grimmjohn
New member
True, though in the case of corals, ATJ posted a nice graph that showed that corals are not as spectrum dependant as I would have thought.<a href=showthread.php?s=&postid=6320397#post6320397 target=_blank>Originally posted</a> by fishieness
well it is both. photsynthesis occurs at some spectrums better than others. in plants it occurs the best in red and blue spectrums. And the worst in greens (that is why it refelcts green light energy).
but in this case, they were talking about PAR
I thought they would fall somewhere like this
But it's really more like this:
For a reference, Sanjay's graphs go from 400 to 700nm
So, they are using just about all you throw at them () : )
Cheers,
grimmjohn
fishieness
New member
im just giving you a hard time. lol
i knwo it didnt matter too much with corals, but i had heard that it matters with clams. Like they dont use as much blue light which is why a 10000K bulb is better than a 20000K even if the PAR was the same.
i knwo it didnt matter too much with corals, but i had heard that it matters with clams. Like they dont use as much blue light which is why a 10000K bulb is better than a 20000K even if the PAR was the same.
grimmjohn
New member
I've never thought that way, PAR is PAR, IMO...but I know some other clam forum regulars think differently () : )
There's a long thread or two fleshing this point out but I digress, knop does say 10K is better, though I don't hink he mentions spectrum usage, at least in the stuff I've read by him () : )
And I don't mind a hard time, keeps everyone honest, you can't ever learn unless somebody questions you () : )
Cheers,
grimmjohn
Rockhead21564
Member
Okay, now I've got to jump in, you confused me,lol. I have two different bulbs in my 90g 250w MH. one is 10k the other side is 20k. I just so happened to put both clams ( corcea) under the 20k. Do I move them? They anchored themselves and are open and seem happy, they smile all the time. Do I move or leave well enough alone?
Awesome, I started a brainiac war. I know nothing, what is PAR?
And while I am asking because I am curious, how/when do the clams {tridacnids} reproduce? A friend asked and I had to shrug. I've read that they will "spooge" and that can be harmful to other tank inhabitants and cause skimmers to overflow. Thanks, all.
CWW
And while I am asking because I am curious, how/when do the clams {tridacnids} reproduce? A friend asked and I had to shrug. I've read that they will "spooge" and that can be harmful to other tank inhabitants and cause skimmers to overflow. Thanks, all.
CWW
