Tank update

Thanks :) will the foxface outgrow my tank?
 
Also is there a limit with shrimp? Like with fish? Or just how many different species? How many can I have for my tank? Thanks again germanman!
 
Also is my idea the limit? Or like don't push it? Cause i wanted a firefish
 
So when do I know that it is too big for my tank and have to move to another tank? just when it looks too big?
 
Just tested my tank today and the results were ammonia-0, nitrites-0, nitrates-0, ph-8.1
 
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