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This is a discussion on So undecided within the Freshwater and Tropical Fish forums, part of the Freshwater Fish and Aquariums category; --> I am now in the cycling phase, I picked up a Eheim professional II canister filter rated for 150G. My tank is 100G, the ...

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Old 04-13-2007, 09:34 AM   #11
 
Cycling

I am now in the cycling phase, I picked up a Eheim professional II canister filter rated for 150G. My tank is 100G, the problem is all these mico-bubbles coming out of the discharge part, it looks terrible. If I had fish in there I would not be able to see them. Why is this? Is this only because the cycling process is happening? I am not using fish, Al's gave me this solution in a bottle which I add on the 1st, 7th, and 14th days

When i filled tank i measured this plus the dechlorinator correctly. Anyone have any ideas how to get rid of all these????
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Old 04-13-2007, 10:05 AM   #12
 
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I've got two tanks on the Ehiem Pro II. Make sure that your waterline is above the filter output, and you probably want to point the heads down so not to cause too many ripples in the surface. The more bubbles the filter outputs, the more get sucked in to the input. Also, you might want to turn down the speed for a bit and shake the cannister gently to make sure that all of the air gets worked out of the system. One of my tanks still generates a lot of bubbles, but it is pushing a high rate for the tank and I don't mind the bubbles in this tank.
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Old 04-13-2007, 11:19 AM   #13
 
Pump is setup like you say, I am not talking about a few bubbles but basically half the aquarium is covered in this bubble mist under the water (only way to explain).

Would the new water conditioner and bacteria additives added to water also play some sort of role in this (i hope) because i will need to do something with Ehiem otherwise. It looks terrible
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Old 04-13-2007, 12:05 PM   #14
 
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Did you recently do a large water add recently? Also, are the bubbles sticking to the sides or does it just look cloudy from teh amount of bubbles? Do they go away after some time when you slow the water rate down?
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Old 04-13-2007, 12:13 PM   #15
 
It is a new aquarium, i just started cycling, all the water is new. It's not the bubbles stuck to gravel and sides of aquarium, i figure these will go away in time

These bubbles are coming from the output spout on the filter, water is very clear except for all the micro bubbles which then make things hard to see.
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Old 04-13-2007, 12:13 PM   #16
 
I am not familiar with bacteria additives but if by water conditioner you mean what I term dechlorinator then no: the air bubbles are emanating from your pump system.

As I have limited experience with my Eheim I did not post previously but you might try (which is what I did):

Place the pump in something which will hold water (I used a styrofoam box).
Get the pump primed and going.
Loosen the lid enough to let water start coming out and then reset the lid.
Repeat the process (as best I remember took me two times) until no air is observed in the return line to the tank.

The second time I installed the Eheim I could not get the above to work but it is way simpler than what I did the second time so hopefully it will work for you.

TR
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Old 04-13-2007, 12:18 PM   #17
 
I will give the a shot, it works for my pool pump to get air out why not a aquarium pump

:)

The other thing i noted with this new Ehiem is it just stops pumping and then i need to prime it again and it starts working. Maybe there still is too much air in there somewhere. I would'nt think the air in system should stop the pump all together though?
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Old 04-13-2007, 12:45 PM   #18
 
Quote:
Originally Posted by woodenchef
I would'nt think the air in system should stop the pump all together though?
Oh yea!!

This phenomenon is referred to as cavitation and cavitation will turn the motor into a crispy critter.

TR
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Old 04-13-2007, 12:52 PM   #19
 
So if pump is stopping then this must be the major cause of the bubbles. I will try to correct ASAP by removing lid to try and rid the air, I am sure shorter lines would help too but i don't want them to short. Pump now is under cabinet in front of door with easy access and well within the 180cm range from surface water to base of filter as they suggest. Is has a self prime but i can still see air so maybe lid trick will work.

I did turn the pump off before i left for work this morning because when i woke up and checked it it was again not pumping. I was worried i fried the motor as it was a bit warm not sure when it stopped. But i primed and it started so i unplugged and left it.
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Old 04-13-2007, 01:01 PM   #20
 
Quote:
Originally Posted by woodenchef
So if pump is stopping then this must be the major cause of the bubbles. I will try to correct ASAP by removing lid to try and rid the air, I am sure shorter lines would help too but i don't want them to short. Pump now is under cabinet in front of door with easy access and well within the 180cm range from surface water to base of filter as they suggest. Is has a self prime but i can still see air so maybe lid trick will work.

I did turn the pump off before i left for work this morning because when i woke up and checked it it was again not pumping. I was worried i fried the motor as it was a bit warm not sure when it stopped. But i primed and it started so i unplugged and left it.
Got me thinking and I might know what the problem is (my hypothesis at the moment) and will check this first. I bought one of those textured backgrounds and had cutout a recess for the input side which i am thinking is possibly restricting the suction. The front intake of basket is clear but sides and back are resticted do to textured background and side and back glass. Wish i had a picture, easier to explain
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