I need help with my sump size!!!!

sanlucas

Registered Member
Jan 20, 2006
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Hi, I just bought a 150 gallon tank with two overflows, how big should the sump be? will a 29 gallon tank work?(I have one already) or should I buy a 55 gallon? another thing is which skimmer do you recomend me? thanks
 
You want the biggest sump you can get, because a bigger sump = more water volume, more water volume = more water stability. However, it doesn't really have to be of a certain size. It could even be as small as 5 or 10 gallons.

Judging by what I've read, the coralife super skimmer is the best bang for your buck. Usually, you want a skimmer rated for twice the size of your aquarium, so the one sized for 220 gallons should do.

Also, I'm moving this thread to marine products & DIY.
 
The sump must be able to hold the entire volume of water that will drain from the overflow to the sump in case of a pump failure or power failure.

Many regard this as the minimal size of the sump. When the overflow/sump is working properly, the water level in the tank is slightly higher than water level in the overflow box. Take this difference, multiply it by length and width of the tank. And then divide it by 231 to obtain the volume of water (in US gallons) that will drain to the sump. Thus you sump must be able to hold this amount of water.

Rohn
 
I have a 65g tank w/ a 29g sump and it seems about the right size for me, so I would suggest at least a 55g sump for a 150g tank. JMO. Better to over-plan and over-build. More water volume is better anyway.
 
Thanks for the help, I will get the 55 gallon as you told me, for the skimmer I still don't Know
 
150 gal tank is 72 inches wide and 24 in depth. Many recomend 2 inch water level difference between the tank and the over flow.
This means that your sump must atleast be 14 gals. At normal operation, if the sump is half full, thne I recomend 28 gal sump, so and so forth. A 29 gal sump would be just fine.

Rohn
 
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