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I have a problem at the moment with water surface algae (it is a thin green mist on the water surface like a green oil slick very very thin and light green and transparent)
the air pump brakes it up over night when the lights go off but it slowly comes back during the day after 7hrs of light.
how do I get rid of it ??
280 watts of lightof strip fluro lighting at 7 x 48" nec d/hg triphoshor 6700K on
for 11 hours per day.
filters are 1 x eheim 2217 + 1x 2213eheim + wet dry with sump 70l at 1800l/h , injected co2 into homemade reactor.
dose with PMDD
tank contains 10 small discus ,10 ottos,5 clowns ,6 whiptails ,6 bristle nose cats ,6 Cory cats + 5 kulli loaches
plants are growing great I have to trim once a week.
we do 25% water changes twice a week with 60l of Ro + 40l of tap water
where am I going wrong??
thanking you for any help as you blokes are a great life line and the only one I have.
Dean (outback OZ)
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