A quick query to the wise. i have two tanks. a 29g and a 70g. the 70g is a community tank and the 29g is raising swordtail and guppy fry. i want to move the latter intot he community tank and was thinking of putting the two gold gouramis{three spot i think} and a bristlenose cat into the 29g. is the 29g too small for these three fish?