Fish and tank current?

I had added 2 firefish gobies to my tank 2 weeks ago and rarely see them, my clown fish also stay put pretty much to one corner in the tank. 2 days ago I found an Aiptasia and moved right away to get rid of it. I turned off all water moving equipment and attacked the pest with AiptasiaX and when the stuff was off, the fish came out and were actually swimming the length of the 72g tank.
However once it was time to turn stuff back on, the fish disappeared again, whats up with that?

 

How much current?

 

Will I have 2 Aqueon 1250 circulation pumps. one on each end of the tank. I think good enough to give the Corals their needs, but surely not blasting anything in there to death and not even enough to relocate sand.

 

Could be some stray voltage. I'm running 2 koralia 4's and a wp40 equalling about 6000 you roughly in a 4 ft tank. My fish are always out.

 

Good God I hope not, my hand is in there constantly.

 

I would just unplug one of your pumps for a while, watch the fish. If nothing changes, then alternate and unplug the other. Even though my fish occasionally find a calm spot in the tank, it's not a consistent thing. They are typically out and about in front of the rockwork "surfing" in the current. My Powder Brown tang will swim head first into the WP40 and let it blow him the entire length of the tank, on occasion. It's pretty funny.

 

Actually those guys were out and about last night for the 1st time sine they been in there, guess maybe they needed some time to adjust to a healthier and more homely environment compared to where they came from

 

IMOPE, it depends on the type of fish. Open water swimmers like tangs are accustomed to strong currents in the wild; smaller reef fish, however, take refuge during the height of tidal flow. My damsels are not out quite as much since I bumped my flow from 25 - 30x, even though they have no trouble swimming at feeding time.

 

it is very common for a clown to stay in one spot and not ever wander. Plus firefish can be very timid and hide in the rocks a lot! You might not see them a whole lot. a 72g tank leaves a lot of room for them to hide!

Make sure everything is hooked to a GFCI outlet. Grounding probes is something that some people say is good to have but others say isnt. I personally want a grounding probe in all my tanks as I feel safer. But definately check your equipment and make sure that there is no issues with it. Maybe get a voltage meter?

 

Stray Voltage?

Personally, I don't believe in it. In my 39 years in the hobby, I have notoriously used cheap equipment for the entirety of it's life, and I have never once experienced anything in my tank that could even remotely be blamed on stray voltage. Furthermore, while I'm not an electrician, I do know that electricity needs a complete circuit to be harmful. Guess what the grounding probe provides?

Is Grounding an Aquarium Necessary?