Hello - I have spent days trying to figure out how to create breaks on my y-axis on a facet_grid in ggplot. I used scale_x_continuous to manipulate my x-axis, but that function will not work for my y-axis. My y-axis is depth in feet, is numeric, and has limits from 0-55.

Here is my code:

```
do_vs_depth <- ggplot(data = do_monthly_means,
aes(x = mean_do,
y = reorder(depth_ft, - depth_ft))) +
geom_point(color = "steelblue", size = 1) +
facet_grid(site ~ month) +
scale_x_continuous(limits = c(0, 12),
expand = c(0, 0),
breaks = seq(0, 10, by = 3)) +
# scale_y_continuous(limits = c(0, 60),
# breaks = seq(20, 60, by = 10)) +
theme_bw() +
labs(x = "DO (mg/L)",
y = "Depth (ft)")
```

My graph looks like this: