but im serious, is this thank has overflow build in? i mean if not doesn't Petco sells those for $1/gallon tanks? also are those spots really noticeably when you fill it with water?
No overflow, just a 30 long. Alas right now the closest thing Petco sells is $79.
The spots are definitely noticeable with water in the tank. I'm thinking they're permanent. I might just repurpose the tank for mysis breeding or something that isn't a DT. I was going to use it for a FOWLR, but this might be better.