flow advice please

[a rix]

Hi guys iam nearthe end of my cycle and ive always noticedthat I have debris on my rock and wood iam putting this down to lack of flow the tank is a rio 180 with a fulval 406 filter feeding through a lilly pipe.
I was thinking of buying a small power head say a hydor koralia nano 900 or newave 900 and placing it around half way down the tank pointed towards the other side of the tank . does this sound sensible and would the power heads be powerful enough

Many thanks Anthony rix

 

[john dory]

You should'nt really be getting problems with the filter you have.
The 406 is rated at 1450 lph.
I run one in my 180(ish)without problems.

 

[a rix]

Well that's what i thought however everytime i clean the wood and rock i do get small cloudsof debris coming off i was thinking that the lilly pipe was calming the flow too much

 

[john dory]

Does the debris build up in a particular area,or is it everywhere?

 

[a rix]

Its on every piece of wood and rock

 

[john dory]

What substate are you using?

 

[a rix]

Ada amazonia soil

 

[john dory]

So....when you say debris,do you mean a dust like coating?

 

[a rix]

Yes i would say that better describes it. It's also on the substrate if i look at the substrate I can see small movement across the surface

 

[john dory]

Although i have never used the ada substrate,it sounds like it's just a bit of powder being blown about.
Syphon it off at water change time,and i'm sure your substrate will settle shortly.

 

[a rix]

Oh yes i hadn't thought of that so if I added a power head it may make the matter worse.
The tank has been running now for two months

 

[john dory]

I would'nt add a power head.i'd probably avoid fish that dig...aswell

 

[a rix]

I'll give it a miss then thanks for all your help.
Fish wise ill just be having tetras so all ok there
Many thanks Anthony rix