I've been a bit curious about this and haven't found an answer anywhere. When it comes to decorations, is it best to kinda crowd the bottom area of the tank and leave the top half open save maybe one or two tall plants? I'm working with a 2.5 gallon so I cut up one of the silk plants I got and made a leaf litter on the bottom, but I want him to still have lots of swimming room. So there's one tall silk plant, his little house, and two parts of a silk plant for him to swim through. There's just a couple marbles here and there. He's active and eats good...this is more just for me 
Thanks in advance for your opinions...and all the advice in general..everyone around me thinks I'm nuts for loving my fishie so much
Thanks in advance for your opinions...and all the advice in general..everyone around me thinks I'm nuts for loving my fishie so much