Small batch in large fermenter, Problem?

[Kiwigaz]

So I’m looking to do smaller 10l batch’s but use my 25l fermenter ( plastic bucket type)

Any reason this is a bad idea? Too much headspace?
They are going to be strong abv brews. An imperial stout and having a go at 1698 clone

 

[Sadfield]

No problem at all.

 

[terrym]

Wot he said

 

[Zephyr259]

I mostly brew 15L batches in a 33L fermenter, doesn't seem to be an issue.

 

[Kiwigaz]

Cheers everyone, saves me buying more kit!