Leveling an established tank

[timthetoolman1]

I just picked up a used Red Sea. The floor is level but the tank is just under 1/4" lower in the front. My concern was trying to fix it and making an uneven load. Think I'll just leave it. Maybe try lowering the overflow to compensate.

 

[bozo]

I used a car jack and some 2x4s to jack the filled 225 gallon tank and stand up a couple of inches to add some shims.

Do it super slow.

zero issues doing it this way.

 

[dirty_south87]

Well, this should be fun. So with all of the talk about leaking Red Sea tanks getting me good and paranoid, I decided to check the level of my RS250. (54 gallon display) The good news is that the tank is perfectly level side to side, and level on the stand at all four corners.

This model does not have adjustable leveling feet.

However, when I checked the front to back level, it is pretty off. Leaning forward enough that the water level is, I'd say, 1/4" higher at front than it is at the back. This tank has been established for just about three years. No signs of any bubbling in the silicone or anything, but this out of level front to back has me... anxious.

I'd <really> rather not completely remove everything from the display to take care of this. Obviously I know not to attempt with the display full, but considering it is an established SPS tank with a lot of fish, I'd also rather not remove <everything> from the display if possible.

Is there anyway to approach this without taking everything out? Say, draining 75% or so of the water out and carefully jacking up the front of the stand to get shims under it?

I had just done this with my tank and stand this past weekend. 180 gallon tank and stand with about 4 inches of water still in it for the fishes and corals (everything is small still) my tank was out of level side to side due to the shims I used didn’t hold up. It was a fun job (not) trying to get it right.