Urgent help required: Artifical Seawater salt

Mark wrote:

What is a good product to make artificial seawater, that is easy to use and
can be used buy a moron like me. I want to use it for seahorses

Seahorses are very sensitive animals which requiere special food (live
shrimp, each sea horse species specialises in a shrimp species). Some
can survive for a short time on non-appropriate food, but sooner or
later they die, usually sooner.

Additionally, many sea horses are threatend species and may be added to
CITEX in the near future. Most species have never been bred in
captivity, so each one you buy in the shop has been taken from some
reef.

So in summary, although they really look nice (I feel tempted each time
I see one), sea horses should not be kept in aquaria.

If you want to keep salt water species (fresh water is easier for a
beginner) you can either get any of the sea salt preparations sold in
the shops, or just use filtered sea water, as you are not too far from
the shore.