Johno, the advice I have been given for the most part has been based on me seeing whats in the tub. Not based on them living or not. And it wouldnt be a mess, I understand what you are trying to say though.
Yes, lets put an end to this non-sense.
I have seen this done at the PD Zoo here. Very similar conditions. At the zoo they have a very shallow tank, that is meant for people to put their fingers in and touch the native wildlife (no fish though). It is very clean and everything is doing well in there. And you can see inside of it. So clearly it can be done. Depending on how I would set it up. I can make a beach scene at 16 gal with a surface area of 3'x2'x6". This is almost exactly what they have. This can be done, but I need help from you my friends, in finding the correct equipment to make this Mini NW Pacific Ocean Beach possible.
I am determined to try to make this work because I know it can be a succes. If not; what I want to do isnt going to harm the fish, its just going to (like some say) make it so I cant see them. So if it dont work, I'll probably just get a small tank and use that. :-\
Otherwise I read
"
A: If you have access to clean ocean water (NSR or Natural Sea Water) to put in your saltwater aquarium, by all means use it. Dissolved trace minerals and salinity may vary slightly by area, but since natural sea water is what marine animals live in, it can often be a better source than using fresh tap water and a commercial salt mix to make up solutions, which can be time consuming and costly. When deciding to use ocean water, just be sure to collect it away from freshwater river and stream run-off areas, especially if they are near chemical plants, factories, and animal or agricultural farms where the water may contain toxins, or when fuels are present in places such as around boat docks and high traffic harbors"
Is this a good idea?