Shells and filtration

[something_fishy]

Did you know that scallop shells and clam shells placed in water dramatically improve water clarity!!!

Try it, put a pickle jar of murky ugly water and place a scallop or clam shell inside it, 24 hours later the water will be crystal clear!!!

 

[loganj]

Any idea why? I wonder if something is altered that makes the grunge settle out?
Logan J

 

[targaboy78]

Hi something_fishy,

Did you know that scallop shells and clam shells placed in water dramatically improve water clarity!!!

Any idea if it affects the water chemistry

As an experiment, I tried adding crushed coral and it raised the pH, GH and KH. See my thread below.
http://www.aquariumadvice.com/viewtopic.php?t=1750

I wonder what the shells will do in the long run?
I would assume that they slowly dissolve and raise the pH, KH and GH.

Any thoughts? Anyone?

 

[loganj]

Although I have not tested this, I believe they would.
Logan J

 

[Guest]

I wonder what the shells will do in the long run?
I would assume that they slowly dissolve and raise the pH, KH and GH.

Definitely, they will do that. Waaaayyy back when I was a newbie, I put a clam shell and a sand dollar skelteton in a fw tank, the sand dollar disolved to the point of disintegration in 2-3 months.