i was filling my tank with water to test if it has any leaks and I started hearing some cracking like noise I then closed the hose and immediately started draining the water out as i realised that the glass was in direct contact with the stand. i then learn that i need a mat for rimless aquariums.
i read that they need to be as flat as possible but i only found this locally
![P_20220824_075816.jpg P_20220824_075816.jpg](https://www.aquariacentral.com/forums/data/attachments/187/187325-7e43360d6874dc9279890a14ecb4d7a6.jpg)
the surface is not flat as you can see here:
![P_20220824_075921.jpg P_20220824_075921.jpg](https://www.aquariacentral.com/forums/data/attachments/187/187326-7b3d52407ff16bbb3d4756fdc715398c.jpg)
will it give me problems in the future or is it good to go?
i read that they need to be as flat as possible but i only found this locally
![P_20220824_075816.jpg P_20220824_075816.jpg](https://www.aquariacentral.com/forums/data/attachments/187/187325-7e43360d6874dc9279890a14ecb4d7a6.jpg)
the surface is not flat as you can see here:
![P_20220824_075921.jpg P_20220824_075921.jpg](https://www.aquariacentral.com/forums/data/attachments/187/187326-7b3d52407ff16bbb3d4756fdc715398c.jpg)
will it give me problems in the future or is it good to go?