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I could probably throw a 300 in, as my DH over supported, for my 125! he's amazing that way!Heck. My hubby is an engineer. Added floor support for a reefer 170!

probably safer to support it...than clean up the mess that would make.. Just a thought?How many have not added floor support for a 180 gallon or higher aquarium
do you know where your floor supports are? and how do they line up with tank/stand? I dont know. I'd be so worried. but that's just me. I worry about stupid stuff all the time.Or did not recomend floor support based on tank placement

Fun video, but that's not what happens when a heavy tank is improperly supported. Of course the entire floor doesn't give way. However, a joist settling a quarter inch under the tank could throw the tank out of level and cause a crack.
Oooopsie
PogFun video, but that's not what happens when a heavy tank is improperly supported. Of course the entire floor doesn't give way. However, a joist settling a quarter inch under the tank could throw the tank out of level and cause a crack.
Tanks along an exterior wall, and running perpendicular to the joist, are typically fine. Interior wall parallel to the joist? That's an entirely different situation.
I recently built my fish room in a house we remodeled. I put 5/8 inch plywood around three sides of the walls where the tank would sit. I had someone put a metal frame (4 inches wide and 1/4 inch thick) around the three sides and had bolts screwed into the plywood and studs all around three sides where the tank would sit. A tubular steel support goes across from the sides and is welded in several places to the steel on the sides of the wall. The platform for the tank hangs on the frame that is attached to about 20 feet feet of wall on three sides. There are no posts underneath the tank platform to the floor. This distributes the weight of the tank over several floor joists and one main beam which runs underneath about 1/3 of the tank platform. I figure it needs to hold up a ton of tank and water including sump which sits on the platform beside the tank and not underneath. This should be enough but I still worry about it. I would rather have a concrete slab for everything to sit on.

