what kind of clam is this?

[alix2.0]

saw it at LFS today, was about a foot long. took the pic with my cell, sorry about the quality.

 

[paintballer768]

Derasa

 

[viper_930]

ditto ^

 

[alix2.0]

thanks. does it look healthy? the store owner said that he's been keeping it under PC's for 6 months, and that he's only ever kept clams under PC's or VHO's. i just thought it was really cool, ive never seen one that big in real life.

 

[paintballer768]

Assuming the white splotches are just the coloration of the clam, its possible with derasas. You can keep them under PC/VHO, but it has to be a very heavy wattage light for the size of the tank. Always best done under MHs.

 

[alix2.0]

he mentioned 4 watts per gallon of light, i think it was a 75 gallon tank, so about 300 watts i guess.

 

[alix2.0]

now im not sure, my mom said the tank might have been a 90. can you have 360 watts of PC in one fixture?

 

[candycane]

I would get another shot of the gills. Most clams that get that large, do NOT have the tentacles of their incurrent siphon touching, which is why a clear gill shot is good to get. Also, at that size, it's OUTCURRENT siphon usually should be blowing out water like a small powerhead. If you are thinking about buying it, the shop owner might be able to drop some small food behind the clam or use a piece of seaweed or something so that you can see if the outcurrent siphon is pushing water out.
Also, most of the time you can find a fixture with any combination of wattage that you want. 4 WPG (watts per gallon) is a generaly rule of thumb. On PC's you could probably go more 4-7 WPG for a Derasa.

 

[alix2.0]

i wasnt going to buy it... i dont even think it would fit in my current tank, i was kind of just wondering about it.

 

[fallensynner]

looks awsome and ditto with the dersasa
they r surprisingly for expensive than the max clams
good luck

 

[cranberry]

We had one for 6 years under PCs. Then we we moved (12 tanks) he somehow got missed and left in a cold bucket without a pump. :-( He never made it out of the bucket. Still feel bad about that.

 

[fallensynner]

how much for a foot long dersa clam

 

[nycbob]

it depends on the look of the derasa. on average, about $150-200 for a foot long one. derasa can easily grow 3-5 inches per year. i got one 3 inches a year ago from here, now is a good 6-7.

 

[funkysean5]

Can I keep one under a 29 gal? It is about 15 in. deep. I have the 130 wt. "Satellite" PC lighting.

 

[clownfish11]

no

 

[culp]

whats the price on that clam? its a large one.

 

[alix2.0]

i dont remember.