there are a few issues here:
what are the full dimensions of the tank? an 8' x 6" x 6" comes in at 60KG whilst 5'x2'x2' is about 560KG a huge difference
use the tank calculator to work it out then ask the next question: would you put a piano there?
Dunno why but some people find it easier to think of it like tank. a standard upright will easily come in at 400KG and will rest on only 4 ornate caster wheels. A fish tank stand will spread the load across the floorboards more evenly, introducing support from nearby joists (not great, but still better.)
if you work out it would weigh the same as a piano and you'd put a piano there without asking, you've got a good bet. I currently have a 47gallon running along the joists and it is supported on 12 load legs. been like that for 4 years. Just one thing: fill it part way and let it settle, checking for any stresses or structure failures (easiest way is to look for stress marks and to also check the level with a spirit level: should remain the same.) then top up some more and do the same. repeat till filled to the top.
also, I can lift a sofa bed by myself: I do so on many occasions as the missus moves furniture around. Weighs around 30KG, no where near a 4' tank. When it came to moving the piano though, I paid a removals company to shift that one!!!
what are the full dimensions of the tank? an 8' x 6" x 6" comes in at 60KG whilst 5'x2'x2' is about 560KG a huge difference
use the tank calculator to work it out then ask the next question: would you put a piano there?
Dunno why but some people find it easier to think of it like tank. a standard upright will easily come in at 400KG and will rest on only 4 ornate caster wheels. A fish tank stand will spread the load across the floorboards more evenly, introducing support from nearby joists (not great, but still better.)
if you work out it would weigh the same as a piano and you'd put a piano there without asking, you've got a good bet. I currently have a 47gallon running along the joists and it is supported on 12 load legs. been like that for 4 years. Just one thing: fill it part way and let it settle, checking for any stresses or structure failures (easiest way is to look for stress marks and to also check the level with a spirit level: should remain the same.) then top up some more and do the same. repeat till filled to the top.
also, I can lift a sofa bed by myself: I do so on many occasions as the missus moves furniture around. Weighs around 30KG, no where near a 4' tank. When it came to moving the piano though, I paid a removals company to shift that one!!!
