Need a second power head

[Jon Fishman]

I got a Koralia Evo 1400-1500 gph power head for my 46g bowfront tank to add to an existing old one that came with it (no idea how much output it has)


Because I like the magnetic feature of the Koralia and I am too lazy to take the other out of my tank to use for mixing for water changes, I wanted to retire the old one and add a second Koralia

Since they aren't adjustable, should I get a smaller second one 800, or 1000 gph, or should I get another 1400-1500 gph one since ultimately I want to upgrade to a 75, 90, or 125 gallon tank in a year or so?


Would two 1400+ gph power heads be too much for a 46 gallon tank? Is there such a thing as too much flow? Could I just aim them more at the glass to limit their affects?


Thanks

 

[Jackony]

There are different ways to diffuse flow. But I wouldn’t worry unless something is being blasted- corals, sand or other. Aiming at the glass is a good idea. Or try pump placement low to high and increase surface agitation. Also aim the pump across the tank without obstruction to far side glass.

Hope this helps.

 

[Waters]

I got a Koralia Evo 1400-1500 gph power head for my 46g bowfront tank to add to an existing old one that came with it (no idea how much output it has)


Because I like the magnetic feature of the Koralia and I am too lazy to take the other out of my tank to use for mixing for water changes, I wanted to retire the old one and add a second Koralia

Since they aren't adjustable, should I get a smaller second one 800, or 1000 gph, or should I get another 1400-1500 gph one since ultimately I want to upgrade to a 75, 90, or 125 gallon tank in a year or so?


Would two 1400+ gph power heads be too much for a 46 gallon tank? Is there such a thing as too much flow? Could I just aim them more at the glass to limit their affects?


Thanks

That definitely is a lot of flow depending on what you are keeping. IMO, aiming at the glass never seems to do much since it just creates a strong gyre throughout the tank. You can try adjusting your live rock to block or deflect some of the flow. A SPS only tank would be fine but any LPS or soft coral would probably get blown around quite a bit. Also depends on what type of fish you are keeping...some can handle the strong flow while others cannot.

 

[Jon Fishman]

That definitely is a lot of flow depending on what you are keeping. IMO, aiming at the glass never seems to do much since it just creates a strong gyre throughout the tank. You can try adjusting your live rock to block or deflect some of the flow. A SPS only tank would be fine but any LPS or soft coral would probably get blown around quite a bit. Also depends on what type of fish you are keeping...some can handle the strong flow while others cannot.

Well, I ordered another 1400-1500 unit, so I will figure out how to aim and make sure all is still happy.... worst case scenario I will just use one powerhead for now.