Proper pump and sump size for my tank?

[krichardson]

So I am finally getting around to getting my 265 fully operational.It sprung a leak a few years back so I had to reseal it and it has been home to a lone sunfish ever since.
I intend to transfer some of my dats and cichla to it in the near future and I need some pointers on the proper size of overflow box and return pump.I already have a wet/dry sump that I intend to use.

 

[jsodwi]

When I used HOB overflow boxes I ran 2 of them in case one lost syphon. Eshopps and CPR boxes I used and never had a problem. I ran 2-1200gph and a mag drive 24 on a 300 gallon with a 55g sump. My tank was way overstocked with fish ranging from 15-24".

 

[krichardson]

When I used HOB overflow boxes I ran 2 of them in case one lost syphon. Eshopps and CPR boxes I used and never had a problem. I ran 2-1200gph and a mag drive 24 on a 300 gallon with a 55g sump. My tank was way overstocked with fish ranging from 15-24".

You mean the boxes were 1200 gph each?....and what did you run for heat?
BTW,thanks for answering John.You have been here and seen the tank personally so your advice is quite welcomed.

 

[jsodwi]

Yes 1200 gph each. And the mag drive 24 is 2400 gph but with head loss probably running about 1900gph I liked the cpr overflows because they used a pump to run so it was almost impossible for them to lose suction. But they were a little pricey if I remember. I ran 2-300 watt heaters But I gave up on regular heaters years ago. All I run now are 400 watt titaniums from jehmco.com. And a ranco temp controller.

 

[Fish Tank Travis]

Are you open to drilling the tank or do you just want to run a HOB overflow?

Also, I would recommend that you use two return pumps, each rates for half of your desired flow, after head loss. This ensures that if one fails, you will at least keep half of your flow.

 

[krichardson]

Are you open to drilling the tank or do you just want to run a HOB overflow?

Also, I would recommend that you use two return pumps, each rates for half of your desired flow, after head loss. This ensures that if one fails, you will at least keep half of your flow.

No,not interested in having any drilling done at this time so I will stick with hang on overflows.My wetdry has two drip plates with two bio ball chambers side by side.

 

[JK47]

x2 on the CPR overflow recommendation. I have loved every one I have owned as well. The aqua-lifter pumps are cheap. I would suggest you order a backup. I replace mine every other year.