Good Tank or Bad Tank?

[UncleSlappy]

I am considering the purchase of a used reef ready 90 gallon. The corner flo is siliconed in black while the rest of the aquarium silicone is clear. Is this customary for a corner flo tank of any brand or is this a potential DIY job?

 

[djsmallz]

That is standard since the overflow is black they use the black silicone whereas the glass is clear hence the clear silicone seams.

 

[UncleSlappy]

Thanks, that's reassuring. It doesn't leak, and I watched/inspected it for an hour.

 

[Badbrad8500]

Definitely standard, mine is the same way.