Do you need a sump in a salt tank?

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barbtrave

Aquarium Advice Apprentice
Joined
Jan 6, 2005
Messages
29
Location
California
What is the difference between a sump and a regular filter such as a cannister? What would you duggest using in a new 75 gallon salt water tank fish and live rock only?
 
A sump is handy for putting all of your equipment in - heaters, skimmers etc. You can also keep beneficial algaes or corals that don't neccessarily look all that great in the sump (although I think some call that a "refugium").

I have one on my 125, but I won't have one on my 44. Not only does space prohibit it, but I wouldn't have one anyway. The less I have to worry about as far as floods and fires, the better. I assume keep all of the water in one tank and avoid catastrophe.

The canister comes in handy for flow and surface skimming.
 
Usually for a tank this size, most people would recommend a sump. However, some use canisters and fill them up with reef rubble lr for filtration. Sumps do have advantages though:
More water volume for higher bio loads
A place to hide your equipment, heater, pumps, etc.
You can add lr rubble to the sump for natural filtration (Berlin method).

The cost for a sump is significantly higher than a canister, but it is worth it for a tank your size. You could DIY one, but it will need to be built accordingly to prevent any problems. What I did was buy a 125G wet/dry unit off of Ebay for $160, which came with the tank, pump, overflow, and hoses for connection. I threw out the bioballs, and replaced with reef rubble for filtration.
It all depends on what you want, and what works for you. Everyone here has a method that works for them. I like the sump because you can hide everything under the stand, and it is easier to add things such as calcium rather than directly in the tank. HTH

Also - If you don't already have one, look into getting a good skimmer for your tank. Don't get one though until you decide if you want a sump or not as they make different models (HOB, and in sump).
Mike
 
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