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such as nitrifying bacteria (including species of the genera Nitrosomonas
water flow combined with low energy consumption
sodium and nitrate
it will gradually extract even precipitated copper from the gravel/substrate bed as well
Eheim Powerhead 650 / Aquarium Aquaball 1212 Diffusor Bubble Magus such as nitrifying bacteria (includingEheim Aquaball 650 Powerhead is a universal pump suitable for general water circulation and powering under gravel filters. Its 'ball shaped' pump head fits in to a very sturdy ball joint holder with 4x suction cups which can be pointed in almost any direction. The main features of this pump: Adjustable output. Sturdy, yet flexible pump holder. Easy to install, simply attaches to the glass on 4x suction cups. The outlet can be pointed in almost any