I've lost power about 10 times with two AC
filters and I have never had all the water siphon back into the tank. Once the power comes back on, the filtration resumes with no difficulty. The times range from a few minutes to a couple hours. The level in the media area drops by a bit to match the tank level but when power comes back on everything works fine. Even if you have a really low tank level, it is impossible for the siphon to drain all the water from an AC
, because the media area goes lower than the intake tube.
My father lost power on his 55g tank with two Penguin 330s. No one was home, the bacteria on the wheels died, when power came back home finally he ended up with some dead fish after a spike.
With Bio Wheels, my belief is that you can end up with a disproportionate ammount of the total tank bacteria right on the Bio Wheels. So if it all dies from drying out, it can be a big deal.
2x Sunburst Platys (2M, 2F) // 3x Neon Tetras (?) // 2x Cherry Barbs (1M, 1F) // 2x YoYo Loaches (?) // 1x Bushy Nose Pleco (M) // 1x Clown Pleco (?) //
-30# Live Rock
-Mixed Snails (Nassarius // Cerith // Astrea // Black Turbo // Mexican Turbo)
-8x Blue Leg Hermit Crabs // 1x Banded Serpent Star // 1x Cleaner Shrimp
-1x Royal Gramma // 1x Percula Clownfish
-2x Mushroom Leather // Metallic Green Star Polyps // Pulsing Xenia // Striped Xenia // Blue Mushroom
-Remora + Maxi-Jet 1200 // 2x Maxi-Jet 600 // Maxi-Jet 400 // Visi-Therm Deluxe 50 // Current USA Orbit 2x 40w PC