Does anyone know where to obtain low volume (~20 ml) mouse drinking water bottles for oral delivery of compounds to mice?

couldn't you just measure how much you put into a larger bottle? i have never seen any that small. our small bottles are i guess about 100mL...

Actually, I'll have a volume of ~5 ml or so - one bottle per mouse per cage, with a replacement with 'regular' water when the 'drugged' water is fully consumed - no force, no gavage (+the mice are pretty young - just after weaning). Our current bottles are ~120 mls - I need something 5- or 10-fold smaller!

oh sorry i didn't realize that difference in situation...you could always feed them by hand with a dropper (haha!)

maybe you could rig something up with a stopper/sipper and a scintillation bottle? i know that they come in 20 and 30mL sizes. good luck.