It may also be good to get the initial tank set up right the first time instead of upgrading to a bigger and bigger tank as your fish grows and upgrading the filtration as well. I've learned my lesson on this strating from 15g to 30g and finally to my currrent set up of 100g.
On the topic of fish, specially FH being lucky.. I believe this is true... the position of the tank shuld be near the door or window.. it is beleived that the flowign water also brings good things(vibes/karma) into the home. Another quality of keeping fish I'm told is that it absorbs stress from members of the household so much so that they get sick.. instead of the houshold member getting sick.
I kept different cichlids (to which the FH belongs to) for a couple of years .... Now I keep turtles...
HTH.....
