Shell Erosion On Anentome Helena

[bb1991]

So i realize that i could just google this problem and I'll find the answer, which i did, but its a little more to it than that which i can't find; so here's my backstory. I have a small fishtank with a few cardinals which have been with me for almost a year now. There are a few shrimp in there that have also been with the cardinals since the beginning. But recently i had a ramshorn infestation due to a plant i bought recently. (I love them, a few of them are fine and cute but once it reaches the 20+ number it gets annoying.) So about a week ago i went to buy one anentome helena and a black nerite snail. (because i got lazy of cleaning the glass, let him do the work lol) My nerite snail is fine and dandy, like an algae killer machine. But for my anentome helena, i realized that the first few days i got him he dug himself into the substrate. The next few days i saw he had severe shell erosion, his tip of the shell was blunt and white. And now today i saw him lying on the substrate upside-down. I realize its prolly too late for him but i really want to know what caused this.
 
- My nerite snail is doing fine
- Still a ramshorn infestation
- PH 7.4-7.6 ish
- Everything in the tank is fine except for this snail
- Once this problem has been figured out and i fix it, i might get another anentome and don't worry the nerite is atleast twice the size of the anentome.
 
Thanks you guys, I know most people don't think much of snails. But once i put something into the box of love and responsibility (the fish tank), everything inside it no matter how small i'll care for. Hope somebody with more knowledge would care for mine too.
If there's anything you're curious about PLEASE ASK, I LOVE QUESTIONS!!! YOU CAN DO IT IN ALL CAPS IF YOU WANT TO
 
Tank you peeps

 

[Baccus]

The shell erosion might not have been caused by pH ( also was the shell in perfect condition when you first got the snail?), there are another couple of possibilities.
One is that I have seen my rams horns happily munching on the shells of each other and other snails. I dont know if this is just a cleaning type thing or if the snails are just seeking more calcium since they do get into plague numbers and between them and MTS plus shrimp, plants and fish calcium will be in high demand.
The other thing I have seen is like a bacterial infection that eats away the shell, unfortunately I dont know the exact cause or if there is a cure.

 

[bb1991]

I'm not exactly sure if my anentome is suffering from calcium diffeciency because i don't know how to measure it in my tank. I've never seen any of the snails go cannibal on each other, and my nerite snail's shell seems smooth as black silk. But I read somewhere that the main problem is PH being to low, and my PH definitely isn't low. I'm just scared of adding chicken egg shells for it might make my PH go even higher. (not sure on this) I was hoping somebody could tell me the cause of the symptoms i see on the snail. Acting almost dead, shell erosion and the tip of it being blunt and white.

 

[bb1991]

So today i haven't found the snail that i thought was dead since yesterday. I'm not sure where it has gone, there's even no sign of the shell. Anybody have any enlightenments they would like to share. I'm really desperate to find the cause of the problem so i can get another.