gabe,

I bought a bucket of seachem salinity from your store...quick question: Is there typically a sand-looking white residual in the bottom of the aquarium when it is mixed to the correct amount? I have it at 1.024 and there is definitely some sand-like residue on the bottom of the aquarium. Is this normal? I haven't added anything but the salt.

I have tried mixing it in but it definitely doesn't want to dissolve.

Thanks.