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Diatoms
#1
I am having trouble with diatoms for about 5 months and wanted to know what was going on so I got a silicates test kit

I think this a dumb question but thought I would ask Smile

The test reads 6 plus in the tap and 0.3 in my tank is this because the diatoms are feeding on it ?

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#2
How long are the lights on for?
How good is the water flow around the tank?
Silicates may play a part with diatoms, but they aren't the only reason for them. Wink
If at first you don't succeed....
...get someone else to do it! Big Grin

Enjoy your fish, shrimps and snails!
Ian

All my posts are from a desktop.
Mobiles are way too complicated for me, although I do have one now. Wink
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#3
Fluval 3.0

Sunrise 12-2
Midday 2-8 at 50%
Sunset 8-930

Fluval 14w led 2-8

My flow is good fluval 406 on my 29 gallon

Also my phosphate around 10 ppm

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#4
That’s a long time for lights to be on. Bring it down to around 6 hours and see if that helps.
500L Sooperhooge Goldfish tank Smile
200L The Barbarium….Tiger barbs and a very grumpy BN plec
200L Marine Reef.....stocking in progress!
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#5
Either the lights are too strong or not strong enough (I get really confused with new-fangled LEDs with the settings), diatoms can form because of either reason (or basically on too long or not long enough). I would say that 6-8 hours of daylight strength is sufficient for plants. If you don't have plants, you won't have anything using up the nutrients besides diatoms and/or green algae, but you don't say whether you do or not.
If at first you don't succeed....
...get someone else to do it! Big Grin

Enjoy your fish, shrimps and snails!
Ian

All my posts are from a desktop.
Mobiles are way too complicated for me, although I do have one now. Wink
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#6
Sorry I do have a planted tank currently ei dosing, plant growth is really good

I didn't think sunrise and sunset includes I the time period because they arnt that bright or does it ?

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#7
It may do, this is what I can't get my head around..... Wink
If at first you don't succeed....
...get someone else to do it! Big Grin

Enjoy your fish, shrimps and snails!
Ian

All my posts are from a desktop.
Mobiles are way too complicated for me, although I do have one now. Wink
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#8
Alright thank you

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#9
I've been transported back to 1969 and an 'A' Level biology experiment. Rhubarb (for such was the teacher's nickname) had us track rates of photosynthesis over a number of days. The plants involved weren't aquatic, I don't think, but their MO's would have been near-identical. The lighting was a 'sudden on' arrangement rather than gradual dawn/dusk.

If I recall correctly,  after a period of darkness the plants took two hours to be photosynthesising on all cylinders ; and a similar lenth of time to power down to zero from the grid (as it were).

So I think I the sunrise and sunset periods (unless they're more than an hour, say) would be entitled not to be counted in your photoperiod timing!
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#10
Ok thanks but just to throw something else into the mix I have 8% blue on at night just visible so I can enjoy after sunset does this come into accout

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