Internal vs external overflow.

[Reef Swimmer]

Is it better to have an internal over flow for a reef or a external over flow. I don't really wana mess with bio wheels and would rather have all my filtration below the tank in the tank stand.

[allan]

Internal, less of an opportunity for a mishap.


Sent from my iPhone using Tapatalk

[Reef Swimmer]

That's what I was thinking. The tank I'm looking at doesn't have either the a hang on with a bio wheel and I want to put in a internal overflow if that's possible. It's a 75g fowlr already running but I haven't bought it yet.

[reefreak]

Noise! The noise on my hang on the back was so loud! But I have a drilled tank and am able to control it now.

[Reef Swimmer]

Yeah I want it quiet. Is it possible to make a external over flow tank into an internal overflow tank?

[Sherita]

Internal. They are quieter, and there's less of a chance for a flood. If the tank you are looking at isn't drilled, you will need to have it done. You will need to be sure the tank is not made out of tempered glass on the side panels (bottoms are almost always tempered and cannot be drilled).

[CoryDude]

After having the j tube on my external overflow fill with air and break the siphon, and after having to listen to my wife complain as I mopped up the kitchen all the time, I swore off external overflows forever.

[Reef Swimmer]

Hoping to get the 90g oceanic that sergiotami has for sale. It's has a center internal overflow box and comes with canopy and stand. I was looking at a 75g that is fowlr but is all hob and I don't like hob. I don't wana chance a flood and I want a quiet tank. I already got a ton of noise with trains right behind my house.