Gd clear glass, strong braceless tank.DIY or get professional remove some internal scratch tank will be perfect ( 12mm glass will not have toughness compromised with some buffering). View pics for clarity of contents, enhanced pic for gd and honest representation of the scratch. Doesn't the breeder box look like it's outside the tank ? perfect corners and strength no chips. perfect black oyama backing. gd clear glass cover for free if you like to have it. give a reasonable of