Cabinet level but tank slightly off?

[Onixom]

Hi all its probably been posted before but i couldnt find it so im sorry
But I've recently had to reinforce but cabinet as it started to collapse while i was filling it with water... a few improvements with 2×4 timber has seen that the cabinet is more sturdy then before.
My concern is that ive leveled the cabinet to be bob on level put my polystyrene down and placed my tank ontop of polystyrene (rimless marine 150l tank) but putting level on the tank and its touching the line now will this affect it
Am i panicing for nothing? Just really want to know before it gets dangerous sort of thing.
Thabks in advance

 

[dontbuyxenia]

I had a 150 gallon tank on a floor for 2 years that had about 3/4 inch difference from either side. I just put some shims under and reduced that difference to about a 1/3 inch(Still a lot and probably not a good idea). For a small tank it doesn't matter as much. You can put shims under the tank on the stand if you like. But its not that big a deal imo.