I was looking into getting a clam soon and have heard that small ones (under 2 inches) do not do terrible well, and die for unexplained reasons. Can anyone tell me what is a good size to get? to maximize success? thanks.
If you're getting a t. maxima, 3" clams are very hardy and still relatively small. Baby maxima's don't seem do do very well like you said but i have had good results with very small squamosas. If you're looking for growth get a 2-3" derasa, if you keep your CA up the thing will grow like a weed. HTH
One thing that might be worth mentioning: Tridacna clams tend to ship better if you buy them at a relatively small size. 1-3 inches from what I've gathered is the best size for shipping. I think TRA vol.1 goes into detail on this.
Just wanted to make sure you have MH lights. I think most on board will agree that T. Max needs MH lights. T. Squomosa should survive under PC or VHO but growth will be slower than under MH.
I have seen people with sucess with 1-3", but 3" or larger is definetly much much much much hardier. If you can afford it, get the even larger size, 6"+.
Pretty much and answer boils down to "how much $$ and space do you have?"