I love your fishroom! how large is the big tank? it looks to be at least 30" tall.
how are you for power? I know in my fishroom, my finished basement is on one circuit, and with the 50g tank I am adding, I am near the safe limit for the 15 amp circuit. If everything in the basement was on at once (including all 4 aquarium heaters), I would be drawing 11.7 amps of current or about 1400w). I will have three setups (a 150g, 65g and 50g)
the electricians tell us that you never want to use more than 80% of the capacity of the circuit for continuous use. which makes sense from a safety stand point.