Hi :)
I have a really small fish tank with a shubunkin, pleco and 2 white cloud minnows, i know the tank is small so i have just picked up a deal with a second hand Juwel Trigon 190 :)

Im still a beginner and i have a few questions! Please help!!

1) It comes with a heater but do i take this out for my fish?
2) Can i mix coldwater and tropical fish in the same tank?
3) I want to make the tank look natural and not like a child has just added a plastic rock so do you guys have any suggestions on which rocks, wood, gravel or decorations would look good?
4) Can i grow plants in my tank?
LASTLY 5) What other fish would be good too add into my tank? :)


Im getting the tank in 2 days time and would love some help off anyone with knowledge!


Thankyou for you time :)


-An amateur named Matty