Since I'm getting my species of fish in 2's will they automatically pair up? Or totally depends?
its best that way and now that im more awake id wouldnt recommend mixing dottybacks. i had over 8 fish in my 29 but it was filtered for a 100 gallon tank and i had the experence under my belt just try a few and see how it goes.i would suggest no more than 4 fish in a 30 gallon...
Niko