Does Google de-index for creating same niche dating sites
 

Hello,

I have some dating sites (black dating, christian dating, general dating, etc.), but online one dating site has good traffic.

I mean, only one dating site has good traffic and the rest is not generating good traffic.

So, my question is:

Does Google de-index for creating same niche dating sites?
Do I have to change IP for each site?

Thanks.