Еще, как вариант, дозирование Korallen-Zucht Sponge Power - это простимулирует рост губок, а они для роста силикаты потребляют.
Sponges are the second largest consumer of dissolved silica in the ocean, after diatoms.14 Many sponges use silica to form internal structures, called spicules, which help them retain their shape. In the case of the sponge Tethya aurantia, these spicules are needles of amorphous silica that comprise 75% of its dry weight. These spicules are 2 mm long and 30 mm wide.15