4-5 times the gallonage is a minimum for all fish, nut if you keep any oscars or chichlids, I reccomend 11-12 times the gallonage
Helping friend with a 150 gallon tank - Need some help!
- Thread starter jdheff1982
- Start date
GPH has little to do with filtration capacity.
eheims can support much larger loads and have pretty low flow rates compared to most HOB filters.
alot of wet/dry filters, trickle filters, etc. are setup to only flow at 2X the tanks volume per hour or less. They can easily keep up with the load at this flow rate.
large filters like these give bacteria alot of oxygen, nutrients, and plenty of surface area for them to attach to.
Many filters pass water through the media so fast the bacteria does not get a chance to breakdown alot of the ammonia and nitrite on the first pass.
eheims can support much larger loads and have pretty low flow rates compared to most HOB filters.
alot of wet/dry filters, trickle filters, etc. are setup to only flow at 2X the tanks volume per hour or less. They can easily keep up with the load at this flow rate.
large filters like these give bacteria alot of oxygen, nutrients, and plenty of surface area for them to attach to.
Many filters pass water through the media so fast the bacteria does not get a chance to breakdown alot of the ammonia and nitrite on the first pass.
Last edited:
I do too. I like them because of two reasons.
1. the mech and bio filtration is seperate. you can toss the entire filter media without touching your bacteria population
2. when the power goes out, the bio media isnt submerged under water so the colony could live longer.
1. the mech and bio filtration is seperate. you can toss the entire filter media without touching your bacteria population
2. when the power goes out, the bio media isnt submerged under water so the colony could live longer.
Hey thanks for the reply!!! My friend has a lot of money, so getting what it takes to keep the tank looking good is not a problem. Just curious though, since the eheim run at about 1050L per hour (1 150gal cycle per hour), that would be enough to keep the tank clean??? I would almost want to something to help aid. How about surface skimmers and such????? BTW, what is the best product to raising pH of a tank? The city water runs at about 7.4 to 7.8 and his water runs anywhere between 6.0 and above. His water softener runs at 6.0 and from the outside spigut, it is about 6.5. Again thanks!!!!!
P.S. - The picture of the sump filter is pretty close to wht he has. Only difference is that it is close to 5 or 6 years old and is old in design.
P.S. - The picture of the sump filter is pretty close to wht he has. Only difference is that it is close to 5 or 6 years old and is old in design.
I think your gonna want to use the sump filter and get an eheim to go with it, just so you can have extra filtration
