Rack question

[grcforce327]

I made my first rack and had an eight of an inch gap between the tubs. Now I can only find a spacer that is a fourth of an inch. Would that be too much for baby balls? And would it keep humidity enough?

You need to explain yourself better so people can understand just what you are asking. I see the "eight " means "eighth",but why would you be worried about a gap between the tubs? In my hatchling rack,the tubs sit side by side on each level,but the space between the tubs makes no difference whatsoever. Are you talking about a gap between the tub and the top of the rack slot?