I never really got rid of the diatoms, and for some reason (I removed for some days the aerial vegetation cover, therefore giving more light?) they're somehow blooming again.
The other species of algae totally overcame the moss, which I removed, and are doing the same with the hornwort:
I'm adding some fertilizer, which clearly helps the plant, but the algae don't stop growing on it, and all affected needles soon rot, polluting the water.
The whole result is a quite unsightly mulm resting on the substrate, in spite of the weekly siphoning. I'm soon going to lower the water outlet from the filter from its elevated position down to the water surface level, hopefully increasing the flow and helping move the material into the filter.
One of the glassfish is gone, and the other ones do not grow by a bit. Possibly, they are smaller than before... They still eat only mosquito larvae, which attract them with their continuous movements.
Not very happy, at the moment.
The other species of algae totally overcame the moss, which I removed, and are doing the same with the hornwort:
I'm adding some fertilizer, which clearly helps the plant, but the algae don't stop growing on it, and all affected needles soon rot, polluting the water.
The whole result is a quite unsightly mulm resting on the substrate, in spite of the weekly siphoning. I'm soon going to lower the water outlet from the filter from its elevated position down to the water surface level, hopefully increasing the flow and helping move the material into the filter.
One of the glassfish is gone, and the other ones do not grow by a bit. Possibly, they are smaller than before... They still eat only mosquito larvae, which attract them with their continuous movements.
Not very happy, at the moment.
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