What kind of a turn over rate do you like?

[dawnmarie]

Ya just line the 240g with 10-12 AC110s

I'm done for the night. I gotta think before I speak (Dad's Advice).

 

[I<3fish]

If I'm overstocked I would like to achieve at least 8 x turnover rate but I always try for 10 x no matter if I'm over or understocked.

Did you even read my post... Turnover is not as important as bio media and bacteria colonies when removing toxic waste build ups... And if you're overstoced, then you should shoot for more biological filtration rather than mech/turnover...

 

[tcarswell]

One thing is you cant rate what the filter says on the box as your turnover.

Either way I cut the manufacturer rating in half. This gives me 7-8 X which is more than enough

 

[turtlesrock]

on my 20gall i have around 10x

on my 105gall i have 9x


i only have two fish tanks. my brother has around 7x turnover on his frog tank. i have 3 more frog tanks but they just have water bowls.

haha my cousin has like 10x turnover on there 40gall and 60x turnover on the 10gallon

 

[tcarswell]

on my 20gall i have around 10x

on my 105gall i have 9x


i only have two fish tanks. my brother has around 7x turnover on his frog tank. i have 3 more frog tanks but they just have water bowls.

haha my cousin has like 10x turnover on there 40gall and 60x turnover on the 10gallon

Yeah but you are counting the manufacturers rating on HOB's that are store brand .

For a sump if you can calculate head height then yes that is viable.

However saying an ac110 actually flows 500 gph is far from correct. Real world flow is usually much less.



Oh and DawnMarie , Read the quote in my signature. Whatever you are thinking about saying crazyfish88 most likely already said

 

[Bderick67]

Oh and DawnMarie , Read the quote in my signature. Whatever you are thinking about saying crazyfish88 most likely already said

I'm sure DawnMarie understands my sarcasm is directed towards the ludicrous comment suggesting she boost her turnover to 20-23x by adding a bunch of aquaclear 110s to her 240g tank.

This is something either you overlooked in your threadstalking haste or just are unable to comprehend.

But just for you tcarswell I'll explain it. OK 20 to 23 times turn over on a 240g tank would be 4800 to 5520 gph(this mean gallons per hour). The aquaclear110 HOB(that's hang on back) filter is rated at 500 gph(remember gallons per hour). So if you divide 4800 and 5520 by 500(pm me if ya don't understand how to do the math) you get that you'll need 10 -12 of these filters(remember AC110(AC means aquaclear)).

Now in your mind try to envision a fish tank with 12 AC110s on it, I though this would look kinda funny. So that is why I

<this little guy is rolling on the floor laughing, you should lighten up and try it sometime.

 

[john73738]

Good grief... I thought I was gonna blast my fish into the side of the tank running a 780gpm pump on a 75 gallon tank.

Guess not..


Thanks

 

[hybridtheoryd16]

It isn't always beneficial to have a high turnover rate. For a sump, the slower the water usually means more contact time of water to bacteria, more contact time=more waste levels processed. High turnover is only truly necessary for mechanical filtration and has very little effectiveness for biological filtration, which is the MOST important type of filtration. 5,000 gph is WAY too high for a tank of 240 gallons and will make you kick yourself in the ass for the extra $50 a month in your powerbill. I would say you would be good with about 2000-3000 gph due to the fact that you are running canisters and undergravel filters. I suggest getting a sump if you want to increase your turnover and get rid of the ugf (not dissing it, just saying it would mae maintanence more difficult.) because i would imagine they are going to make a lot of poop build up under those rocks you need for african cichlids to hide in. I highly doubt your fish are struggling with oxygen deficiency. Just remember, water quality is much more important than turnover rate. Just because you can't see the poop doesn't mean it's not there stewing in your filter making waste.

Cheers.

This is a very common misconception about higher turn over rates.

With a 5x turn over rate the bio filter see's the water 5 times per hour (5x) and has its certain contact time.

The same tank with a 10x turn over rate. The bio-filter will see the water 10 times an hour or double, but have less contact time.

Basically in a closed volume of water it balances out no matter how high a turn over rate is. This is why when you have a tank that the bio load is out competeing the bio filter, raiseing the turn over rate can help.

But it only works if the contact time with the bio filter excedes the minimum needed to convert the ammonia/nitrite.

 

[Crazyfish88]

Did you even read my post... Turnover is not as important as bio media and bacteria colonies when removing toxic waste build ups... And if you're overstoced, then you should shoot for more biological filtration rather than mech/turnover...

Yes I did read your post and I get your point but did u read my post? Did I say 8-10 x mech turnover rate? Also who said I was using a sump? FYI I'm using mostly cannister filters on all my tanks and they all are heavily loaded with bio media...also each canister has a certain amount of flowrate so it has enough contact time with the bio media but with a sump with high capacity flowrate then ya it's no good.

 

[SemperFish]

I would think one of the realistic limiting factors on turnover rate would be how much current you want, and how much current the fish should have. Theres probably a point of diminishing returns as you lose biofilter effectiveness as you drastically increase mech filtration flow. My tanks are over stocked at the time so Im not too concerned about turnover rate. I get good bio filtration and do lots of water changes due to nitrates. I get alot of poo out when I do my water changes. Once I upgrade my tanks then I will be more concerned with flow rates but i really think with mech filtration how youre moving the water is more important than how fast. If all your craps at the bottom and youre only taking in from the top you probably wont get the results you want by increasing flow.

Just to touch on the UGF without starting a fight. I liked having my UGF because it made the poo disappear, but I also aggressively vac'd the gravel when I did water changes. I also had one with my red devil but all of his constant digging pretty much made it pointless. Id never go UGF with cichlids but like it with big poopers like my goldfish an koi