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Old 11-05-2018, 08:44 AM   #1051
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Around a certain place or the activity lvl drops?
Tested water parameters ?

Cleaning of water fall any residual goes Into the pond?

No koi no pond here just thinking aloud .

why my kohaku koi stop swimming around these past few days? nothing have changed apart from the weather being a little warm and just a little cleaning of the water fall that serves as aerator.
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Old 11-05-2018, 11:31 AM   #1052
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Around a certain place or the activity lvl drops?
Tested water parameters ?

Cleaning of water fall any residual goes Into the pond?

No koi no pond here just thinking aloud .
Swim around slowly and stays at the same spot for long times. Cleaned as usual and water is a little low on pH as advised. But on and off it swims normally
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Old 11-05-2018, 12:14 PM   #1053
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Bro the warm weather can cause bacterial spikes. Keep observing. If always on the bottom with fins clamped, might be time to call koi farm to take a look.
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Old 11-05-2018, 12:22 PM   #1054
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Waterfall cleaning often releases a large amount of waste into the water.
The other thing it does is knockback the bio a great deal, eapecially if the pond is underfiltered.

Have you tested the big 5? PH, KH, Nitrates, Nitrites, Ammonia?

Lastly, I hope you used pond water to wash the waterfall. Our tap water is full of chloramines which will damage the bio filter.

Last edited by DragonFire; 11-05-2018 at 12:25 PM..
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Old 11-05-2018, 12:25 PM   #1055
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Personally, I would spread out waterfall cleaning over 2-3 weeks, a little section at a time. A portable pump would be used to provide pond water for cleaning. Alrernatively a high capacity declorination system can be used to provide dechlorinated tap water for the same.
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Old 11-05-2018, 12:31 PM   #1056
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You mentioned your PH is a little low. Do do a KH test. KH is a measure of the water’s ability to maintain a given PH level despite addition of acid or alkaline materials. SG KH is extremely low out the tap, and buffer replacement like oyster shell and sodium bicarbonate needs to be added to keep it high.

KH is also used by aerobic bacteria to process ammonia. Insufficient KH will result on poor filter performance.
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Old 11-05-2018, 12:32 PM   #1057
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BtW got pics of your setup? Always interest to see what others do with their ponds.
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Old 11-05-2018, 09:54 PM   #1058
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If all goes well, getting this built with my new place. Haven't done volume calcs but should be near 75t. The circular main pond in front is a bit over 50t. Triple drum filters, turning over 150t an hour. Almost fully automated and fully redundant. Learnt from mistakes made with the last pond I built.



Edit: If keeping fish doesn't work out, it'll be a nice swimming pool lol.

Last edited by DragonFire; 11-05-2018 at 09:58 PM..
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Old 11-05-2018, 11:38 PM   #1059
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Looks nice!

Got some more questions:
1) What kind of vacuum recommended to clean substrate? Fish shitting all over my nice clean sand (I'm tempted to just use my filter as a vacuum and move it around by hand)
2) I found a clear mesh netting on amazon, to diy a tank cover, are there similar alternatives?

Last edited by gwbasic; 11-05-2018 at 11:40 PM..
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Old 12-05-2018, 03:24 AM   #1060
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Plain old siphon works best for substrate vac. Don’t use your filter or it may jam with sand.
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Old 12-05-2018, 03:49 AM   #1061
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Where to find in sinkapore? I went a few hardware shops and even paint shops, all don't have
Many amdk recommend this

http://www.performancecoatings.com.s...c-satin-black/

S15 per can

or you can try plasti dip

$18-$30 per can




i believe instead of just letting it dry u can should it cured
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Old 12-05-2018, 08:54 AM   #1062
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Yeah the trustee siphon best
I using the python for my 5,2,2 with gravel and it is perfect .

Using pump cannot control , if suck up sand u cannot lift up to make it lose suction

Plain old siphon works best for substrate vac. Don’t use your filter or it may jam with sand.
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Old 12-05-2018, 09:17 AM   #1063
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Wow this thread going good

Me keep fish too

Normally I will create a chain of food finisher from TOP till bottom

Arowana
Niugini bass
2 teugelsi and common black pleco
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Old 14-05-2018, 01:54 PM   #1064
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Anybody knows where to get these 2 fittings? Can't find in neighbourhood hardware shop.




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Old 14-05-2018, 01:57 PM   #1065
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Anybody knows where to get these 2 fittings? Can't find in neighbourhood hardware shop.




mainland over at pasir ris got sell many of these.
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