how many gph/gpm for a 100 gallon?

bass man · 12-04-2007, 03:35 PM

I am getting myself a 100 gallon (60lx21tx18w) and wanted to know how many gallons per hour/gallons per minute I need to filter it at? I am not sure what it will be housing yet, but I am thinking about 3-4 piranha, or 10-15 exodons.
thanks for all your help and input.

emc7 · 12-04-2007, 05:11 PM

Recommendations for gph are from 5X (planted with betta) to 10X (Cichlids or goldfish) the tank's volume. So 1000 gph is appropriate for 100 gallon.

neilfishguy · 12-04-2007, 05:24 PM

7x to 10x a an hour is great.

joe kool · 12-04-2007, 05:29 PM

most people recommend a starting range of cycling the tank 10 times an hour and then go from there depending on the messiness of the inhabitants. I like sump style filtration on bigger tanks like that for biological and basic mechanical filtration with a canister to supplement bio/mechanical and any chemical filtration that may need to be done periodically. I also use a spray bar type return that I made from PVC pipe that spreads the filtered water over a greater area of the tank and creates a nice flow in the tank instead of 1 area with very turbulent flow and several dead areas in the tank.

there are as many opinions on different / best ways to "filter" water as there are people on this site. I like spray bars someone else won't same with sumps and canisters. I tend to over filter because I house African Cichlids and tend to have crowded tanks as a result to minimize aggression and well because their so dang good looking I just gotta have more

my 100 gal had a tide pool 2 sump with a quite one 6000 pump and the SOS over flow. A mag 350 canister (going to be changing to fuval 405 or their newer x series once I return from Korea) and will sometimes run a internal ehim 4 plus filter just to help stir things up and get the spawning activity boosted at times. The spray bar is roughly 4' with 1/4" holes every 1" or so and centered in the tank and hangs on the top rear of the tank ( I think I used 1/2 or 3/4" pipe ... don't remember just now and the tank's half a planet away

)

The sump allows you to put your heaters and most other unsightly things in it and keep the tank it's self for the fishes ... a intake and return hose or 2 but other than that just decorations and fish

bass man · 12-04-2007, 05:49 PM

Wow, short and to the point, then a detailed suggestion on filters. Thanks every one!

joe kool · 12-04-2007, 05:56 PM

I do tend to ramble from time to time

12-04-2007, 03:35 PM	#1
bass man Member Join Date: Jun 2007 Age: 16 Posts: 37	how many gph/gpm for a 100 gallon? I am getting myself a 100 gallon (60lx21tx18w) and wanted to know how many gallons per hour/gallons per minute I need to filter it at? I am not sure what it will be housing yet, but I am thinking about 3-4 piranha, or 10-15 exodons. thanks for all your help and input.

12-04-2007, 05:29 PM	#4
joe kool Senior Member Join Date: Jan 2005 Age: 36 Posts: 572	most people recommend a starting range of cycling the tank 10 times an hour and then go from there depending on the messiness of the inhabitants. I like sump style filtration on bigger tanks like that for biological and basic mechanical filtration with a canister to supplement bio/mechanical and any chemical filtration that may need to be done periodically. I also use a spray bar type return that I made from PVC pipe that spreads the filtered water over a greater area of the tank and creates a nice flow in the tank instead of 1 area with very turbulent flow and several dead areas in the tank. there are as many opinions on different / best ways to "filter" water as there are people on this site. I like spray bars someone else won't same with sumps and canisters. I tend to over filter because I house African Cichlids and tend to have crowded tanks as a result to minimize aggression and well because their so dang good looking I just gotta have more my 100 gal had a tide pool 2 sump with a quite one 6000 pump and the SOS over flow. A mag 350 canister (going to be changing to fuval 405 or their newer x series once I return from Korea) and will sometimes run a internal ehim 4 plus filter just to help stir things up and get the spawning activity boosted at times. The spray bar is roughly 4' with 1/4" holes every 1" or so and centered in the tank and hangs on the top rear of the tank ( I think I used 1/2 or 3/4" pipe ... don't remember just now and the tank's half a planet away ) The sump allows you to put your heaters and most other unsightly things in it and keep the tank it's self for the fishes ... a intake and return hose or 2 but other than that just decorations and fish __________________ A conglomeration of cichlids from all over living happily in my "melting pot" of tanks. Breeding: currently nothing ... I'm sequestered in South Korea, "Osan" to be exact 2 days till I'm back in the states!!!! Florida to be exact, those Floridians have no idea what they're in for!! current Fry: see above tanks: 100, 55, 46 BF, 26 BF, 20L, 5 fry tank 20L planted with CRS is the only thing up (easy for the wife to care for in my stead)

12-04-2007, 05:56 PM	#6
joe kool Senior Member Join Date: Jan 2005 Age: 36 Posts: 572	I do tend to ramble from time to time __________________ A conglomeration of cichlids from all over living happily in my "melting pot" of tanks. Breeding: currently nothing ... I'm sequestered in South Korea, "Osan" to be exact 2 days till I'm back in the states!!!! Florida to be exact, those Floridians have no idea what they're in for!! current Fry: see above tanks: 100, 55, 46 BF, 26 BF, 20L, 5 fry tank 20L planted with CRS is the only thing up (easy for the wife to care for in my stead)

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12-04-2007, 05:11 PM	#2
emc7 Senior Member Join Date: Jul 2005 Age: 39 Posts: 2,893	Recommendations for gph are from 5X (planted with betta) to 10X (Cichlids or goldfish) the tank's volume. So 1000 gph is appropriate for 100 gallon.

12-04-2007, 05:24 PM	#3
neilfishguy Senior Member Join Date: Oct 2007 Age: 16 Posts: 185	7x to 10x a an hour is great.

12-04-2007, 05:49 PM	#5
bass man Member Join Date: Jun 2007 Age: 16 Posts: 37	Wow, short and to the point, then a detailed suggestion on filters. Thanks every one!

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