Suggestions for a new aquarium

Why is no one answering? For each range (10-15) 15-25, 25-36

Looks like with a group of 5, the stocking is full at a 20 gallon long and the 29 is at 90%. Try playing around with aqadvisor.com.
I was not sure what filter you had, so I can't say about water change schedules.

Thanks, they dont have certain filters
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