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.
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
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.