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Koi Forum voor de beginnende en gevorderde koi hobbyist • Bekijk onderwerp - bruine aanslag























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bruine aanslag

Over waterwaarden meten, algen e.d.

bruine aanslag

Berichtdoor Sandervd » Vr 08 Mei 2020 19:38

Op alles in onze vijver komt een bruine aanslag waarop "luchtbellen" ontstaan. Ik vermoed dat dit bruinalg is.

waterwaardes lijken mij in orde, NO3 en NO2 zijn 0, GH 10, KH 12, ph 7,2

Wat denken jullie dat het is?

vijver1.jpeg

Sandervd
 
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Re: bruine aanslag

Berichtdoor freek123 » Wo 13 Mei 2020 13:19

Geen idee, maar ik snap ook niet wat ik op de foto zie.
Is het geen ijzer wat oxideert/roest ?
10M3 HDPE vijver, Aquaforte 20000 pomp, Filter; SB, Blauwe mat belucht, blauwe mat, poraglas belucht
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freek123
 
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Re: bruine aanslag

Berichtdoor Sandervd » Wo 13 Mei 2020 23:34

het is een bruine aanslag waar belletjes op ontstaan, het is zeker geen roest, het zit overal op en aan, de planten, de wanden. Van dit rooster kon ik makkelijk een foto maken. Als je het eraf veegt, is de bruine aanslag na een paar dagen later weer terug.

Sandervd
 
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