2 x 6045 in an 70RR Oceanic

[Giovanni]

I am thinking of trying a pair of the 6045s on each side of the tank switched by an aquacontroller for alternating current. My tank is 36" long 18" wide and 24" high. I want to place them on the back in the corners and point them toward the front center. Will these be enough flow? Will they switch on and off without trouble?

Thanks

 

[Kinetic]

what kind of turnover do you want?

Take the flow of the 6045, multiply by the quantity you have, then divide by your tank size to get the turnover. See if it meets your expectations.

Switching on and off needs to be at least 15 seconds apart I believe... or was it 15 minutes...

 

[Giovanni]

I was realy wanting to hear from the guys at tunze USA about this. I am not looking for an education on flow and turn over. I am more interested in the experiences the guys at tunze USA have collected from users with similar tanks and similar corals.

I should have said, I am keeping SPS in the top half of my tank.

Kenetic,
Are you running the 6045s?

Thanks

 

[Kinetic]

I don't think there's much education needed for flow and turnover.

For SPS it's recommended about 45x or more turnover. Then it just sort of becomes personal opinion of what exactly is better.

I think everyone can agree 45x would be good enough, but some people like to go crazy and put in 100x turnover.

The math is easy, turnover means how many times the volume of water moves.

Such that you can easily do 45 x tankvolume to get the GPH you want (given your 45x is in hours, and tank is in gallons).

 

[Giovanni]

So you are saying I need 45 x 70 for 3150gph turnover. Sure if I want water all over my floor!!

 

[rvitko]

Kinetic is right, you generally want 20* bare minimum turn over and for SPS 40+ is what most people strive for now. The 6045 covers an area of about 3ft by 18". Your tank is roughly the same as my 58, just taller. I have a 6045 and a beta model 6055 with roughly the same flow rate running continuously. The results are good but honestly I would like to add another pump when the 6055's come out. I am keeping a ritteri and some leathers and polyps, the focus is the ritteri so I don't have the highest flow demands.

 

[Kinetic]

<a href=showthread.php?s=&postid=9416608#post9416608 target=_blank>Originally posted</a> by Giovanni
So you are saying I need 45 x 70 for 3150gph turnover. Sure if I want water all over my floor!!

I don't think you realize that 3150gph is not a lot for a reef tank.

can you picture how much flow a reef gets by those crashing waves?

your water won't be all over the floor since there is no overflow or anything, these are just moving the water as one solid piece. You won't be directing them straight out of the tank or anything.

You're overreacting to the massive number. Just calm down and think about it.

I put 5000+ gph into my small 40g breeder tank just for fun for a week. No water was on the floor... tired fish though =)