Do I have to cycle the quarantine/hospital tank before I use it?
I'm thinking about running it with no light, just a small powerhead, heater, and small, cheap, internal filter. A couple of pieces of small rock (not live) maybe for hiding places.
Do I need anything else?
In the case of using it as a hospital tank, I won't of course have any time to cycle/mature the tank, so what would I do in this case, if it needed to be used immediately? But I could setup the tank 1 - 2 weeks before quarantining, in this case, what should I do as well? Could I just siphon off some water into my 15 gallon from my main tank? If I can, with me losing so much water from my main tank (about a quarter), how long can the fish in my main tank last with only 3/4 the water in, and the filter/heater turned off (the output spraybar from my Eheim is JUST under water level, and can't go any lower because of physical restrictions, so therefore in this case the spraybar would be well above waterlevel. It could always output the water onto the surface I suppose (as opposed to blowing it out under the surface) until I've chance to mix/RO
some more water to refill my main tank. Is this ok? How long will the fish be ok for with so much water missing?
As far as filter media goes, I've got an Eheim 2327/84 with the Eheisubstrat filter media balls, so I couldn't put some of those into a small, internal filter could I? Are there any other options to get living bacteria into my hospital/qt
tank in a hurry?
Do I need to do anything else?