How big of a sump for a 100 gallon

[Lex_510]

Need advice on a sump, I have a 36x15” sump that leaves space in the side for what ever. wanted to know if this was a ok size for 100 gallons. I do have an option to buy a 44x18” sump for $300 but will fill up the whole stand and don’t want to buy if I don’t have to. Would this work of just do it right the 1st and go bigger and lose the space

 

[ryanjohn1]

I wish I had room in my cabinet

 

[Reefing_addiction]

So I have a 75 with a 40 breeder 36Lx18wx16t for a sump (capacity is almost 44gal when full)

I’m getting a 100 gal tank soon and. My sump will be 36Lx15wx17t (almost 40 gal capacity)

The only reason I went a bit smaller was because I wouldn’t be able to get something in that was wider that 15in and going to much taller would limit access.

If you don’t mind losing the space I would go bigger.

The more water the easier it is to maintain a balance.