I only did a few extract brews, but I would say as long as you mixed it up really good, and are sure that the OG is what you were shooting for, I would stick with whatever the volume is. The tick markers on those buckets seem to be off quite a bit. The hydrometer doesn't lie(unless you put it in water and it reads anything OTHER then 1.000-then you'll need to compensate). Either way you'll have a good brew, so enjoy!
Fermenting/Conditioning: Casc/Cent APA, Hoppy Birthday Amarillo/Simcoe IPA(6g American/5g Belgian), Chappist Belgian Dubbel
Bottled/Kegged: Red Rye IPA, Wesside Trip(Westmalle Tripel clone), ESB, Lil Trap (4% Trappist Starter Batch), Robust (Pumpkin) Porter, 3% Little Hopper, "Slick Rick" Old Engine Oil Clone(oaked w/ vanilla and balvenie scotch), Imperial RyePA,
On Deck: Quad, Belgian IPA, Orfy's Mild, Scotch Ale