It kinda depends on the set up you are going for. There isnt anything negative that comes from extensive research but with fish keeping there is a lot if trial and error involved (when mixing species anyway). I wouldnt get too obsessed with the research but basic species requirements such as prefered temp, ph, hardness etc and you're generally good to go.
If you plan to set up a biotype then a lot more research would be required.
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If you plan to set up a biotype then a lot more research would be required.
Sent from my GT-I9195 using MonsterAquariaNetwork App