kind of salt

[JKO]

I know you can`t use table salt for your tank, but I have this stuff that is sea salt for cooking. It dose not have iodide but dose have calcium silcate. Can I use this in my tank or am i stupid????

 

[AndyL]

I would avoid it, Calcium silicate could cause some issues... Namely a probable increase in KH (carbonate hardness) and higher silicate levels can do some interesting things in a tank. (I have a personal theory about silicate levels and blue green algae growth)

You actually can use table salt (iodized) in a fish tank - it wouldn't hurt the fish - but if you have any invertebrates (shrimp) you will have problems.

Andy

 

[jd_energy]

I would just do it the safe way and go to the lfs and get some aquarium salt.

 

[Somonas]

You can use water softener salt. from Home Depot. a bag will last you 10 years. Make sure it says "pure evaporated sea salt" or something. 99.997 pure or around that.