359.58 Gallons [US] = 3,000.7900684 Pounds (approx)
So you are at least in the ballpark of 1+ tons.
All things considered: LOCATION LOCATION LOCATION
Find the most stable location for this tank just as you would any other aquarium. Make sure you have easy access to water for fill/draining. Make it as easy as possible for you to access any and all utilities that you may need. Design the filtering around your wants and desires.
The best possible location for your holes would be in the form of a linear flow.
Clean water in one end, dirty out the other. Since you are getting this custom drilled.....consider two or three return holes (to spice things up a bit) and two or three drains. The added turbulence (relative) will not only benefit your rays in terms of added stimulation, it will benefit your total system by better suspending waste solids in the water column for removal by the filter set-up.
You can easily create a manifold to handle the three returns properly with DIY stuff from a local plumbing store.
Be creative in what-ever you choose....good luck, hope this was helpful.
So you are at least in the ballpark of 1+ tons.
All things considered: LOCATION LOCATION LOCATION
Find the most stable location for this tank just as you would any other aquarium. Make sure you have easy access to water for fill/draining. Make it as easy as possible for you to access any and all utilities that you may need. Design the filtering around your wants and desires.
The best possible location for your holes would be in the form of a linear flow.
Clean water in one end, dirty out the other. Since you are getting this custom drilled.....consider two or three return holes (to spice things up a bit) and two or three drains. The added turbulence (relative) will not only benefit your rays in terms of added stimulation, it will benefit your total system by better suspending waste solids in the water column for removal by the filter set-up.
You can easily create a manifold to handle the three returns properly with DIY stuff from a local plumbing store.
Be creative in what-ever you choose....good luck, hope this was helpful.