Newbie plumbing advice

[Van down by the river]

With the Teflon tape I was refering to wrapping the threads of the hose barbs.Not the barb end that the hose attaches to.

As to the comment of the hose moving and coming loose, I would say there was more at work here as well as a lack of hose clamps. No hose clamps, is the same as PVC without glue/silicone sooner or later........Unless you like wet floors.
I recommend well seated unglued PVC for in sump or tank only plumbing.
Sorry electrical tape is asking for messy salt creep and leaks sooner or later. Just a warning maybe,.........You might want to knock on some wood.