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Filter for 125g reef tank

2K views 4 replies 4 participants last post by  Pasfur 
#1 ·
I am looking for a good filter for a 125g All Glass reef tank (predrilled). I am currently looking at the MarineLand Model 3, is this a good one? If not I have a budget for about $400.
 
#2 ·
No! That BioWheel will become a Nitrate factory.

Spend $100 at Petco, buy a 40 gallon breeder, and glue some plexiglass baffles in. Read Understanding Sumps in the Sumps & Refugiums section of this forum, it will help you in gluing up your own sump. If you don't want to go that route, buy an acrylic sump, but don't use the filter floss or bioballs, or any other mechanical filtration.

The basics of filtration in a reef system are: A good Protein Skimmer, Live Rock and Live Sand, preferably 4"-6" deep.

Spend the remaining money on a good quality skimmer.
 
#4 ·
Agreed. You want to invest the bulk of your budget into a good Protein Skimmer, placed inside the sump. I am using an ASM G3 in my 180 FOWLR. This would be a great skimmer for you as well.
 
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