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advice please tank running for 4 month and still hi nitrites???

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i have a small two ft tank and the nitrites are still high

should the tank have cycled by now ?

ph 8.0

no2 1.0

no3 20.0

water changes reg 2-3 days about 30%

hang on water fall filter (standard carbon pad and bacteria insert)

and air bar and stone

6 platys (been in there since the start)

1 oscar (small)(new addition 2 m)

1 redclaw (from the start)

i have a big tank getting setup now for the oscar small tank temporary

thanks

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Depend on how much do you feed them? How many time? because with 2 ft and amount of fish you have it in there, their waste can build up quiet quick if you over feed them. What you can do is change 50% of water and measure your water for nitrites then stop feeding them for 2days and measure again to see any changes.

Yep, if your test kit is old which can give you a fault reading.

For your Oscar, he/she might be ok for now but when he/she grow abit bigger you need atlease or minimum 3x2x2 but I would house him at the minimum 4x2x2.

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test kit is new or as oold as the tank 4 months

yes the oscar is growing fast just setting up my sump for my 4x2x2 tank for him

still working out what is the best material for it

have done a few big wc and the oscar sulks big time and the w quality does not change

and have tested the tap water and it all good

think my tank is just too boi loaded ?

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Still raining lots up in Townsville mate??

Maybe get some rain water rather then crap tap water buddy..

R u going to put a internal in ur bigger tank (for flow rate) if so maybe pop that in the smaller tank

that might help 4 now and it will be ready 4 the larger tank when that setup...

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Still raining lots up in Townsville mate??

Maybe get some rain water rather then crap tap water buddy..

R u going to put a internal in ur bigger tank (for flow rate) if so maybe pop that in the smaller tank

that might help 4 now and it will be ready 4 the larger tank when that setup...

Bully is right! As well as filtering the water you have to move it around the tank, or you are only filtering part of the water.

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Your current filter on the 2 foot.

It does not have enough bacteria in it.

Not much you can do about that except add another filter

either an air powered sponge (instead of the air stones)

or even put a small powerhead in there (that has as large a sponge as possible.)

waterfall filters are great when they are optimized

I reccomend the coarse sponge/matrix combo

cut a piece of coarse sponge so it slots in and takes up half the space

then put some matrix in a bag and place that in front of it

the idea is the coarse sponge picks up the debris AND grows good bacteria

and the matrix grows masssive amounts of bacteria

what you have at the moment

is carbon (chemical filtration... disposable)

and what amounts to a bioball in a different shape

this is ok for dealing with the waste from a few tiny fish

but is underpowered for what you are expecting it too do

even with your frequent water changes

its just out gunned

so yea

if it was me

I'd buy an airpowered sponge filter to throw in there as well

well actually I'd just take a cycled one from another one of my tanks....... but...... ya get the idea lol

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I would add sponge filter first then check your water to see if nitrites are heading in the right direction

You can never over filter but its easy to under do it

just remember the fish to litres can't be too high

Sounds like your ready for a larger tank anyway ?

Fish junkie

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thank for all the help guys

have removed the carbon pad and replaced with the same size sponge and

put some matrix in a sock at the bottom of the filter

wasnt really any room in the tank for an internal or sponge

got all the parts for my sump as well this hepled me decide on what and how to set that also

thanxs again

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