240g load

[Georgej6496]

Hello I’ve had this aquarium setup up near 4 years but the board on the far end is sagging it has shims under it and pretty level but the board has sagged a bit.. should I move the tank and reinforce the joists it’s 240g or is it just the board slightly bending

 

[Georgej6496]

Not sure if video has uploaded correctly unfortunately it’s my first post, sorry

 

[Georgej6496]

Video below