Water circulation

[koniyakutz]

Hi guys,

I’m currently using a 1200L/hr canister filter to circulate the water in my 2ft*1.5ft*1.5ft tank. I suspect there is insufficient flow as I have grayish patches and dirt all over the sand bed.

I plan to do away with the canister filter and use a Seio M620 instead, however I have some concerns:

1) The M620 has a flow rate of 2400L/hr, will it be too strong for my tank?

2) Will the strong current stress my fishes?

3) Currently, I have leather corals in my tank but I’m planning to add some LPS and clams in the near future. Will the strong flow rate do any harm to the corals?

4) As I do not have a sump, I’m relying on my canister for mechanical filtration, LR for biological filtration and macro skimmer to remove DOC. By doing away with the canister filter, I will lose my mechanical filtration. Is this alright?

Thanks and sorry if the questions sound stupid, I’m still a noobie newbie.

[diabolus]

why do you have to do away with your canister filter?

you can just add in a M620 without removing the canister filter.

[Copperband]

imo .... you could run the canister filter on a spraybar at the middle of the tank.......behind the rockwork..... this will flush out any detritus that may be stuck behind your live rocks... and makes it easier for u to syphen away...... and the seio can be put at any corner of the tank to provide water current.....

[Achilles Tang]

If you have a small tank, you will most certainly need as much filtration as possible, be it mechanical or natural.

There are pros and cons of each and you will have to live with them.

The canister filter can be removed if you are willing to boster your husbandry methods some other way.

The internal circulation powerhead only moves water but does not aid in filtration.

You have to adjust your powerhead accordingly if it becomes stressful for your livestock ie. fish getting stuck against the wall! Corals flying around the tank!

AT

[koniyakutz]

Hi guys,

Thanks for the feedback and suggestions.

The season why I wanted to remove the canister is b'cos I'm worried the strong water current might stress the fishes and corals.

I have seen the M620 in a 2ft tank before, very strong current and the fishes had problems swimming.

[tineng]

me using tunze 6100 for my 2x1x1.....so far, my fishes seems to enjoy the flow....

[Kaf]

I have a 500l/hr and a 1700 l/hr pump to aid circulation in my nano.

And also the output from my eheim.

Been using this setup for a long time, no problem at all.

Fishes like to go against the flow and play with the current especially myflame angel.

[koniyakutz]

Will go ahead with the M620 then.

I was worried as the fishes(clownfish and damsel) in the display tank were struggling against the current to prevent themselves from getting the 'washing machine' treatment.

[optimus prime]

seems like a hamster on a wheel. some time of the day my fishes just go towards the strong flow. paly for a while then go rest.maybe its natural in the wild as strong currents bring food.( eg. plankton ).

[veliferium]

are strong currents good for softies....da mushies on da rock seems to drop off due to my currents...if there is no currents,a lot of poop gets stuck on my sand...so how???