An aquarium overflow box serves the purpose of draining water from your display aquarium into your aquarium sump or filtration system. It typically comprises a weir and drainpipes designed to efficiently redirect water out of your tank and into the sump. The installation of overflow boxes can be undertaken either by the aquarium manufacturer or as an aftermarket addition by the end user.
Overflow boxes come in two main types: internal and external. An internal overflow box is situated inside the aquarium, often built by the tank manufacturer. However, these internal boxes can be large and bulky, occupying valuable space within the aquarium. In response to this, there has been a shift towards external overflow systems, which are located outside the aquarium. This design choice allows for more space within the aquarium, promoting a cleaner and less obstructed aesthetic.
An excellent example of an external, low-profile overflow system is our Shadow® Overflow, which not only effectively drains water but also minimizes the impact on the overall appearance of your aquarium.
There are multiple styles of overflows and we HIGHLY recommend the Shadow® Overflow
Given its superior quality, customizable color options, and robust functionality, the Synergy Reef sump is highly recommended for a stylish and efficient filtration system.
So I ordered a RM 34 roller mat sump that needed to be cut down to a 32”. It came in about a month and it was shipped extremely well. It took me hour to bag up all the peanuts from packaging. :) It looks amazing and while I have not installed it yet (waiting on tank) I am certain it will perform just fine! My only thought is I wish the acrylic was a little thicker but overall very happy.
I've been using the overflow for over a year now and am really enjoying the very low noise the box is outputting altough I am running a lot of flow through it! Surface skimmer is perfect and cleaning is very easy. Great design!
I installed this over flow on my 240 Gallon (2 X 2 X 8) tsunami aquarium. I have it plumbed into my Synergy Reef CL-60. Everything runs great. My only regret is not getting the option to replace the filter socks with a roller mat. I had to cut my CL-60's filter sock section to accept my roller mat.
The socks and silencers are great like I expected. Knew I wouldn’t be disappointed since I have had a great experience with my synergy reef sump and overflow. Thanks!
Originally purchased the 5 gallon reservoir from Synergy REEF and it was great, but only got me to mid week until I had to fill it again. This 10 gallon reservoir can keep my 168 gallon open top peninsula topped off all week.
Bought this for my new 75gal reef tank. Have yet to install but first impressions is that it is a very quality piece. Super excited to get the tank drilled and the water flowing. Ordered the bits to drill for the box as well as the return lines. Great value and shipping was very quick.
Not much to say! Great reservoir. I have 2 pumps feeding into two different tanks from this reservoir and it’s serving its purpose, probably the best looking reservoir in the market.
