Note that on a given electrical circuit, you only need one GFCI not one per outlet. In most places that means one per room, however it has to be near the first one.
You don't really want multiple, because debugging what tripped can be a nightmare. I'm also unclear if having multiple leads to any other issues.
Knowing which outlet requires some knowledge of the way the wiring is setup.
Alternative is I think you can by GFCI power strips, though if you can't reach the outlet behind your main tank maybe doesn't matter either way? Getting shocked is definitely a good reason to think about GFCI, but arguably more important seems to be fire risks from saltwater drips and shorts. The whole hobby is asking for electrical issues. Another reason this is a money hole.
I have 3 they came in a box. I have 4 tanks in the same room. Each on different outlets.
Though one tank is hooked up onto the kitchen so different breaker.
I have a garage outlet that I plan to run to my main sps tank. I Already have the wire for it ran through the garage/ livingroom wall. Though this is on standby as the two 40 gallon breeders in the garage are currently on that circuit. I don't wanna risk tripping that breaker until qt tanks are no longer running. 3 tanks on one outlet seems like I would be asking for problems.
Yet I haven't tripped a breaker in several weeks so I'm content for now until The qt tanks are no longer needed.
Goal here is to spread out the load across multiple breakers.
So out of the 4 tanks in the same room to clarify.
Living room breaker:
1.) sps tank: decent load:
2 mp10s, 2 kessils 360xs, hydros launch controller, ink bird, temp probe, ph probe, salinty probe, vectra ctra s1 return pump, protien skimmer, redsea nano roller, mini brs gfo reactor return pump, 300 watt heater, interment- hydros ato, hydros single head dosing pump.
2.) 210gallon tank
3mp40s, 4 kessil 360x, 2 jaebo 1300 dcp return pumps, gfo reactor, protein skimmer, 1 800 watt heater (I have a second 1000 watt heater I haven't hooked up yet), ato pump, hydros start controller, temp Probe.
3.) Im 25 lagoon, very old school 30watt nicrew crew pendant light discontinued version, heater, nano return pump, 1 254 gallon generic wave maker. Ato.
Kitchen breaker:
4.) 32galllon biocube nem tank
1 kessil 360x
Heater, inkbird, ato, mini retun pump, 2 hygger mini wave makers.
The 40 gallon sps tank and 210 are the real power hogs, the other two seem minor in comparison. So my long term plan was to switch the main sps tank to my garage circuit.
I have 3 total gfic breakers. So I'm thinking of using one. Near my 40gallon sps tank that I intermently use to run heater, wave makers, pumps to do water changes and fragging equipment. These are in constant use by any means and really will i run more than 3 extra heaters and a wave maker to heat water mix salt drain dill tanks etc.
I would likely use one gfic on the outlet near the im25. Not really sure about where to use the last one.
I didn't know there are gfic power stripes. I'm wondering if things something I can plug the dj power strip and hydros start from the 210gallon tank in. The wall outlet there is only 2 prong. Currently using a 3 to 2 prong adapter there.
Would this gfic power strip offer some protection ? At least not get me electrocuted or fish fried? Of all my tanks this tank definitely has this highest power draw.