Hob overflow

[Calqless]

Can u underlow a hob overflow box?? I ask because i late night amazon'd an overflow for a 125g+... I'm only setting up a 75g with a sump? Will it be okay as long as my pump is good enuff?

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[jrc0528]

In my opinion, yes. I've had micro-bubbles build up and form an air bubble in my U-pipes before. If you have the flow fast enough this won't happen as the flow will carry the forming air bubbles right on through.

 

[Hugo_Lopez]

Can u underlow a hob overflow box?? I ask because i late night amazon'd an overflow for a 125g+... I'm only setting up a 75g with a sump? Will it be okay as long as my pump is good enuff?

Sent from my SAMSUNG-SGH-I337 using Aquarium Advice mobile app

Yeah as long as your pump's gph rate is lower than your hob maximum gph by not so much you should be fine.

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[Reefer James]

Freshwater or saltwater? In salt we like our water to move slowly pass the skimmer. In fresh it really doesn't matter unless you're looking for anaerobic areas...