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blue-green algae
Hi,
Blue-green bacteria has started to appear in my tank a couple of weeks
ago. It started below the gravel surface beside the glass and moving
upward. They only appeared at certain spots in my tank.
Q:Should I be alarmed by this?
I've read the FAQ and articles in the Krib but there is no precise
rule mentioned to prevent them. There are hints here and there.
Q:I would like to know what level of measurable water quality to keep
them in check and prevent them from taking over my tanks.
My data:
50gal with 80W lighting and Fluval 303 filter. Lighting 12 hours daily
+ influx of daylight up to 10am.
Water change 20% weekly, add Tetra FloraPride, Natrium Bicarbonate
Tetra Crypto - 2 tablets forthnightly
pH about 7.0
Ammonia and Nitrite = 0
Nitrate <12.5ppm (resolution for Tetra test kit)
Major plants are hygrophilla difformis, various Echinodorus sp.,
aglaonema, limnophilla sp., ludwigia repens etc.
Fishes are 4 zebra danios, 2 black mollies, 2 corycat, 1 pleco,
1 flying fox, 2 bumblebee gobies and just yesterday added 3 pencil
fish.
Q:I would like to add 8 cardinal tetras, 4 corycat and 3 glass
cat in the next one month. Would this aggravate the situation?
I would appreciate any response to this mail. Thank you in advance.
rgds..kbkoh