Clam not closing completely at night

[dradttg]

Dear all,

I notice that my clam are not closing completely even after lights off. I heard that this is a sign that the clam is dying.

Is it true? Is there any way to save the clam?

My water parameter is as follows: pH 8.3, dKH 8-9, NO3 = 0, NH3/NH4 = 0, PO4 = 0, Ca > 420.

[desbug13]

if they close tightly then how they 'breathe'? my clam doesnt even close at all when the lights are off. this is what i'm worried abt.

[dradttg]

if they close tightly then how they 'breathe'? my clam doesnt even close at all when the lights are off. this is what i'm worried abt.

Same same lor. Only close slightly.

Last time, it used to close until left a bit of flesh.

[Gouldian]

I would think that it is normal for them not to close tight shut after lights off. I have 3 crocea and 1 maxima, none of them fully close. I have have them for 6months liao. All of them have grown minimum of 2 sets of scutes.

[typrobin]

mine only retracts the mantle...nvr really close up...

[dradttg]

Hi Bros,

My crocea passed away. My squamosa seem to recover and closed up more now.

regards

[SharkBait]

Hi Bros,

My crocea passed away. My squamosa seem to recover and closed up more now.

regards

Bro, be sure to check for parasitic snails.

[Gouldian]

Hi Bros,

My crocea passed away. My squamosa seem to recover and closed up more now.

regards

It is better to get to the cause of the problem rather than looking at sypmtoms.

Could it be the following reason?

1. Not enough light?

2. Not enough nutrients such a supplementation of Phyto?

3. Drastic change in Water Parameters?

4. Not enough calcium?

5. Predatory live stocks such as worms, nudibraches or fishes?

6. Harassment by live stocks?