Ducatiman
Aquarium Advice Freak
Once my main tank has cycled and levels are good, I intend having 3 small tanks nearby for quarantine, fry and hospital tank. I thought of using water from my main tank to set them up. Is this a good idea. Also, the small tanks will have minimal gravel and no live plants, will levels hold or differ from large tank. Also if there is no fish in the tanks, am I safe to switch filtration and heating of until such time when fish are being added or again will levels drop too much. Will level hold better with filter and heating on.....? How long can water sit without filtration before it goes stagnant!!!