Dark Rift C25 - subbing radial tantalum for film cap, polarity

I'm only missing one part, C25 is a 330nf capacitor. I have radial tantalums in that value, but just want to be sure (a) that this is an ok substitute and won't fry the IC it's connected to or cause other problems, and (b) which hole the positive lead of that cap should be going in. If anyone is able to take a look I'd really appreciate it, build doc attached for easy reference.
 
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