Hi Terence,I have tapped an existing 220 circuit already (originally for the previous owners tanning beds) in the garage and used that for two separate circuits for most of the gear that is down in the FishCave.
Did you take the existing 220v ckt and just split the two hots into two separate 110V ckt's, without replacing the breaker? If so, that's pretty dangerous, especially around water, as if you only "tripped" one side of the breaker, it's likely the other would keep the breaker closed, causing a bad situation.
Just saying




