Is this normal?

[CalciumReef]

It was not there when i bought it,but now there is a hole.I'm not quite sure whether it's normal.Can anyone advise???Thankz

[DeepBlue]

should be normal...I show you my clams....can compare

[CalciumReef]

Actually what purpose does the hole serve?

[ai[k²]wan]

im im not wrong for them to eat

[pospeh]

They actually dont need to eat anything at that size.

The main purpose is to bring oxygenated water into clam, and to exchange wastes.

BTW, the "nozzle" in DeepBlue's picture is VERY long.

[CalciumReef]

I think it needs to eat....its only 2 inch the max...i target fed with Dt jus now

[CalciumReef]

Does the hole open and close from time to time?

[CalciumReef]

The hole is called incurrent siphon,but have yet to find the the true use of it

[CalciumReef]

"Clams feed on microscopic plant and animal matter which is suspended in the water column just above the bottom. Through the beating of small hairlike cilia, a current is created which draws water through the incurrent siphon. Up to 54 L of water may be filtered per day by each clam. The microscopic food, such as filamentous algae, diatoms, algal fragments and ###### flagellates floating in the water, are then trapped within the body and passed to the mouth, again with the aid of cilia. After digestion, fecal material is released at the anus and is flushed out of the body through the exhalent siphon."

Another

The Organ-System of a Clam:

Digestion System: The mantle and gills secretes mucus which traps food particles from the water that flowed into the incurrent siphon. The cilia on the gills and mantle moves the food particle forward to the mouth area where it will enter the digestive tract. The food particle will make its way to the stomach through the esophagus. The stomach's is composed of a digestive gland and the liver. The absorption of food takes place in the intestine. The waste is passed out through the anus and exists the excurrent siphon with the excess water.

This should be the ans...i answered myself in the end.

[DeepBlue]

I think it needs to eat....its only 2 inch the max...i target fed with Dt jus now

ya...small clams need food!

[Dispar_Anthias]

It was not there when i bought it,but now there is a hole.I'm not quite sure whether it's normal.Can anyone advise???Thankz

Thought thats the mouth of the clam