this is a very basic setup i use, it shows the stopknot which is fully adjustable , the stopknot can be tied around mainline or use rubber tube , which i have found too be easier and quicker,
here is a picture .
the depths can be adjusted by simply moving the stopknot.
i use around 4foot clear mono too hook . unsure about bass yet , as ive not tried but Rag or sandeels work well on the float.
also for night fishing a crystal nighlight can be taped too the float so it makes it easily visible,
however i recently purchased a float ( eddystone tattler ) which has a built in section for the nightlight, which will be great.
or you will see various night floats which im sure you may have seen.
i hope this helps,