Whats The Turn-over In Your Tank(s)

[craig855s]

is a high turnover necesary? or does it not matter as long as the ammonia/nitrite levels are 0

 

[oswoldy]

is a high turnover necesary? or does it not matter as long as the ammonia/nitrite levels are 0

Depends whether you want to overstock or not. You can never have too much filtration so people tend to go for more to be on the safe side. I would imagine that most people who overfilter have aimed more towards the 1.5-2inch per gallon guideline or have messy high waste producing fish. That said I personally think 8x is a good safe number.

Im sure someone will correct me if im wrong about any of the above but thats my understanding of it.

Mike

 

[Craster]

High turnover is desirable because it makes detritus more likely to stay mobile in the tank and be grabbed by the filter rather than settling to the bottom. If dosing nutrients for plants it also helps to ensure even distribution around the tank. High flow in a filter splits opinion - some think it's better to put the water in the tank through the filter more often, others think that moving it more slowly through the filter means that the water is in contact with the media for longer.

 

[mixmaster jay]

ive got two ocean runners 6500 lph each and a 1000 lph power head and a 2500 lph skimmer so that = 20 so more like 12/15 times i think correct me if im wrong maths isnt my strong point lol mt system is a sump system too my sump is 4 x 2 x 2 half full at running volume whith is 226.5 l more like 180l with every thing thats in it (media skimmer heater and two return pumps

 

[Tish Fank]

am I the only one who really doesnt have a clue?

im with you on this !

 

[AdAndrews]

for my 35 litre nano, in reality the turnover is about 5x,
for my rekord 60, in reality its only about 2x lol

 

[saltynay]

for my 35 litre nano, in reality the turnover is about 5x,
for my rekord 60, in reality its only about 2x lol

But as a plant geek the rekord 60 would have large filtration from the plants removing ammonia ect...

 

[AdAndrews]

for my 35 litre nano, in reality the turnover is about 5x,
for my rekord 60, in reality its only about 2x lol

But as a plant geek the rekord 60 would have large filtration from the plants removing ammonia ect...

the plants do help a little bit, there is a theory that you can run a tankwithout a filter, just with plants, but even a hugely heavily planted tank would only be able to support a few small fish or shrimp in reality

i should get more turnover for the rekord tbh, but i have never had a problem with algae, all in all its quite a low maintinance tank, so its easier to look after

 

[monkey_wrench]

so which one is it.. is it better to have fast flowing water going through your filter so more water gets filtered in a less amount of time or slow water running through so that the water stays in contact with the media longer?

 

[Schmill]

Seems that 2 very different terms have been mixed around in this thread.

'Turn-Over' is a very ambiguous term, what gives a better idea of peoples setup is knowing what their filtered turnover is, and what their non-filtered turnover is.

For instance my 300L tank has a 1200LPH filter on it, so that gives me 3x, which looks measly in comparison to some of the figures being displayed above, but then you realise that some of those figures are 'bolstered' by including non-filtered turn over from powerheads etc.

I am considering adding a powerhead to my tank, so as it seems like 10x is the recommended combined-turnover I should be looking for a powerhead that will do at least 2100LPH? I imagine it would cost me a small fortune, and cause issues with space if I tried to get enough filters to give me 10x filtered-turnover!

 

[Platygirl11]

I'm planning on turning my 10 gal into a fry tank. I was going to build a sponge filter (or 2) for it, but would that be enough? Also, would an airpump or a power head be better?

 

[aaronnorth]

I had 11x on my 60l, and 18x on my 240l

eems that 2 very different terms have been mixed around in this thread.

'Turn-Over' is a very ambiguous term, what gives a better idea of peoples setup is knowing what their filtered turnover is, and what their non-filtered turnover is.

For instance my 300L tank has a 1200LPH filter on it, so that gives me 3x, which looks measly in comparison to some of the figures being displayed above, but then you realise that some of those figures are 'bolstered' by including non-filtered turn over from powerheads etc.

I am considering adding a powerhead to my tank, so as it seems like 10x is the recommended combined-turnover I should be looking for a powerhead that will do at least 2100LPH? I imagine it would cost me a small fortune, and cause issues with space if I tried to get enough filters to give me 10x filtered-turnover!

The 10x guideline for planted tanks, takes into consideration the fact that media will near enough half it. So what we really want is only 5x but obviously this isnt possible due to media. We could have a powerhead that would give us 5x non-filtered turnover but it is just easier to say 10x, then you are covered, and people dont get confused!

thanks.