I recently purchased a 4 gallon Marineland tank to give my betta more space. What I didn't realize, till I started to put it together, was that it has only one power source that connects to both the LED
lights and the filter. The problem this presents is I can not use a timer for just the lights.
Question, if I put the whole system on a timer, that is both the lights and the filter, what will happen to the bacteria culture if it is off for 12 hours? It is a bio-wheel type filter that also has a filter cartridge.
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