Add a Sump to Your Reef Tank Using an Overflow Box
49 Comments


(water splashes) – Hello folks, Robert
from Marine Depot here and thanks for tuning in. Being new to the aquarium
hobby is an exciting time, learning all about
proper aquarium husbandry and exposing yourself
to a variety of animals that you probably didn’t
even know existed. With all this excitement and
anticipation, it’s really easy to purchase a prefabricated
all-in-one style aquarium or throw together a simple tank with just a canister filter and a heater. While albeit fast and easy, these types of tanks can pose some
really frustrating problems in terms of aquarium
filtration and maintenance. Now this brings me to the
topic of our video today in which we’re gonna talk
all about overflow boxes and sumps, so get ready to
throw away that canister filter and break out the toolbox
’cause we’re gonna show you guys just how easy and beneficial it can be to install an overflow box and sump on your aquarium at home. A sump is simply another
aquarium or container that can house your equipment
and provide extra filtration for your tank, and it’s typically located below your display tank inside your stand. An overflow box is
basically a box with a drain and is the best way to draw water from your aquarium and into a sump. Overflow boxes are available from a number of manufacturers and
you’ll see a wide range of different styles and shapes. A hang on overflow box is
the easiest way to get water out of your tank and into a sump. These types of overflow
boxes simply hang on the side or the back of your
aquarium and siphon water over the edge and down into your sump. The CPR CS overflows are
our absolute favorite because they take up very little space inside the aquarium and
have a built in feature to restart the overflow box in
the event of a siphon break. The most common reason for a siphon break, when using an overflow
box, is a power outage but these CS overflow
boxes have a clever remedy. The small air nipple on top
of the box can be attached to the venturi of a powerhead
or to the inlet of an Aqua Lifter Pump which
will continually siphon air and water out of the overflow box to ensure continuous operation and will also restart
the siphon in the event of a power outage. Some aquariums, usually
called reef ready aquariums, are pre-drilled by the manufacturer and already have an internal
overflow box installed. Water simply flows into the overflow box and drains down into the sump. A return pump then returns water from the sump back into the aquarium. For all of you DIY guys out there, we offer the CPR overflow box retrofits which are basically
prefabricated acrylic boxes that allow you to permanently
install an internal overflow on your tank without the
risk of losing a siphon. The CPR retrofit boxes will require you to drill a hole in your aquarium. The box is then mounted
inside the aquarium which allows water to
flow from the surface into the box then down into your sump. This type of overflow box
does require a little bit more work but results in
a very clean installation and flawless operation. So once you’ve figured out your
overflow box and your drain, it’s time to start thinking about a sump. When it comes to sumps, you
have a few different options. You can build one yourself,
you can have one custom made, or you can purchase a prefabricated sump. Now if you decide to build one yourself, it will definitely save you
some money and it will allow you to customize the sump to your liking, however, it’s gonna require
quite a bit of extra work. Here at Marine Depot we carry a few different prefabricated sumps. The Trigger Systems
sumps are one of the best and their top of the line
Emerald series sumps come with all the bells and whistles built in and look pretty darn cool if you ask me. Trigger Systems put a lot of thought to the design of these sumps. One of the coolest features
is the filter sock holder which has an interchangeable
plate that allows you to run both a coarse filter
sponge and filter socks together or individually, whichever you prefer. When using filter socks, the
handy water dispersion plate evenly distributes water
into all of the filter socks to avoid premature clogging and helps to drastically reduce the drain noise, making for quiet operation. On top of this, the Emerald
sumps also feature an adjustable water height to accommodate
different skimmer requirements. They have a self-adjusting
foam block platform to help eliminate air
bubbles, a dedicated section for filtering media and
refugium, probe holders, and pre-drilled holes
for your dosing tubes. Instead of having all of
your equipment hanging on your tank or sitting
inside your display, an overflow box and sump allows you to have everything neatly
hidden inside your sump. Centralizing all the equipment
also makes maintenance and water changes much easier. The added water volume and
filtration capacity will also improve your water parameters
and make a more stable environment for your aquarium animals. So now you know why so many
hobbyists are using sump systems so if you’re still stuck in
maintenancing canister filters or constantly cleaning up
leaky hang on equipment, give us a call today to
get everything you need to add a sump to your system at home. If you found this video helpful,
please like and share it to help out other hobbyists
and until next time, take care and happy reef keeping. (water splashes)

49 thoughts on “Add a Sump to Your Reef Tank Using an Overflow Box

  1. I run an reef octopus 7000 over flow box it does got but iv put a power head in the tank to keep removing air so the syphon does not stop. Never had a problem

  2. is there a way to clean an external overflow box without dismantling it ?? Are there any flexible brushes that be used to clean the inner parts …

  3. so in todays evergrowing popularity with youtube and "diy" what are the pros and cons of building your own sump over buying a manufactured sump

  4. I have been considering a sump system for my 75g mixed reef but I am very hesitant because of the horrors I have heard regarding over flows. Since I live in a condo unit and have neighbors below me I can not risk this happening not even once. What assurances do you have regarding over flow protection?

  5. I recently installed a CPR 50 and an Eshopps Nano Cube in my 29-gallon reef tank. The CPR+Aqualifter is definitely the way to go if you're worried about overflow. Also, plug the Aqualifter and your return pump into a well-rated battery backup and you'll virtually solve the problem. A sump is great if you can find a way to squeeze one into your system.

  6. I am going to be adding a sump to my already established reef tank but I have a question. Will adding a sump change the salinity in the main display? Or will it stay the same if the sump and display match salinity? I don't want my fish and corals to go into shock over parameter swings.

  7. i dont get how a sump filters.thares only one small litle section to put media, and i not getting something ?please help

  8. what is that thing called that you used to plug up the hole you created so you can use a pipe or hose to connect it to the sump.

  9. the CPR CS series unit:
    WARNING: do not buy this overflow box the toms aqualifter pump failed
    after a couple months but the biggest problem is THERE IS NO WAY TO
    CLEAN INSIDE THIS BOX there is a large area in which there is absolutely
    no way to get to, I give CPR credit for trying but there is a design
    flaw…….. just google you will see nothing but complaints from people
    that have been running these for any amount of time

  10. bom vídeo. belo aquário, sou iniciante, me deu boas dicas. visita o meu primeiro aquário, vou acompanhar seu canal. brevemente vou ter novo layout se quiser acompanhar

  11. So what happens when the overflow fails but your return pump is still dumping water into your display tank….? Very wet floor methinks.

  12. Never used a sump but i`m considering one… My question is..In the event of a power outage(happens a lot here) what keeps the overflow from draining the tank? Sry if this is a dumb question, I`m new to this!

  13. Should I do this or drill my tank for an overflow? I heard that these boxs fall off a lot and aren't very good?

  14. This might sound a silly question but can you drill an already running tank? Kind of do it during a water change. I'd love a sump but really don't like the idea of the hang on boxes

  15. How do you know, how powerfull a powerhead you need to keep the water going in and out of the sump at the same levels ?

  16. Will this hold siphon if the power goes out? I may be over thinking this but what if the power goes out then comes back on later and the return pump comes back on but for some reason, the aqua lifter pump does not?

  17. 43 seconds in and you have my attention, SIR. been in the hobby about a year and have 8 tanks and am looking to make sumps…. carry on

  18. CPR is crap junk. Don't do it you'll regret it. Think of it. You need to buy another part to make a piss poor product work.

  19. I like the idea of using an overflow box, it immediately takes a lot of questions I have in mind. Regarding tubing to allow water to pass, can we use regular clear thick plastic tube(found in hardware stores) that is slightly smaller/larger on the diameter of the hole of the return/overflow holes to attach and secure with aquarium safe glue/ cable tie? Or is there a certain kind regarding brand/material? Thanks- Erick.

  20. What a great video. I’m gonna modify my two 6 ft tanks and have a go at doing this. Still keep a canister as back up but I’m gonna go sump no 1 from now on.

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