BM curve 7 problems

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Hi all , i came across with this forum in the last days trying to figure out how to solve my problem with a Bubble Magus curve 7 protein skimmer. I've been read the posts regarding this type of skimmer ( including the curve 5 posts) and can't find the solution for my problem( thank you all for other small trick and tips found it).

The problem i have is that i am getting a lot of bubbles from the bottom of the skimmer ( on the output of the air dial) and not sure if this is something normal for break in period or is something wrong with my unit. The skimmer is up and running for 2+ weeks and i had this problem from new. The water depth in my sump is 25cm so have no ideea what the problem can be. I have the filling that this pump is to powerful for the skimmer body or the water/aer mix is not ok.


Mike

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Reply #1

It is mainly because it's new. It all needs to build up a mulm layer inside.

Your valve is fully open, though. If you close the valve down to about half way, it'll flood the cup, so raise it up further to combat that.
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razvanrudy

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Reply #2

Thanks Mike for the quick reply ( much appreciated) . I just raised the skimmer so no it sit on only 19cm depth of water and i turned the dial on 2. It's not overflowing my cup but still got a lot of bubble under the white plate and then out trough the output. I will give another week to see how is going and hopefully it will settle down and finish with this break in stage. My biggest concern was not be a faulty unit and no matter how much i am trying i will be able to fix it , and mainly due in all video i found on youtube none of them have bubble under the white plate. Allready started to think on getting a Reef octopus classic 110 or 150 due better reviews compared with this model. Any thoughts about this switch?

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I will attach couple more pictures here and hoppefully i will manage to update my signature and the welcome page
Last Edit: Aug 10, 2017 5:42:02 pm by razvanrudy

Asco1104

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Reply #3

Like Mike said, it needs to break in. Turn the adjuster so it lets less air in and the bubble height drops, don't worry to much if it's not skimming yet, I also noticed you have swapped tanks wich will also take a bit longer for it to start working due to hands in tank and oils etc from new equipment.


Tim

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razvanrudy

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Reply #4

Just an update and questions....
Still fighting with this skimmer and up to now i can only say that i am disappointed( but not giving up)
Still getting a ton of micro bubbles from outlet and can't find a way to stop them going on my refugium. I added 2 more buffers ( or buffels ???) to create a bubble trap but didn't help. If i am adding any filters between  the water level on the skimmer chamber it will raise too much.
The question i have is how high should i set the foam level on the neck?
My chetao on the refugium is getting full of micro bubbles and not sure if this will affect or not.
Right now on the refugium i have the heater , 2-3kg of rocks , 4 hermit crabs , chetao and copepods( just added 5 bags due i have a mandarin and i am trying to populate the refugium with copepods). Any of this can be affected by the micro bubbles coming from protein skimmer? This is my biggest fear and problem due the bubbles don't pass the refugium on the return pump chamber.

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razvanrudy

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Reply #5

Some picture on how my sump look now( you know......a picture make a thousand words)

Any advice on changing , adding or removing things?

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fr499y

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Reply #6

remove the sponges :P unless you clean them every week!

razvanrudy

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Reply #7

I clean the sponges every 2-3 days when i change the filet socks. They get clogged verry fast and water in the skimmer  chamber will raise and go over the buffels instead underneath........

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chilliman

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Reply #8

tell me if am wrong but an't the air line under the cup (drain over flow tube) should be out of the water and not in it ?

Asco1104

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Reply #9

tell me if am wrong but an't the air line under the cup (drain over flow tube) should be out of the water and not in it ?

Dosnt overly mater as long as the bung is in the end


Tim

razvanrudy

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Reply #10

Yes should be out of water but due too many overflows i am keeping that line in the water open untill it will settle. All the bubbles are coming out from the dial outlet at the bottom and on many videos i see that should be no bubbles under the white plate.
 Except some verry small yellow spots( oil like) the foam is white and no dark foam or other things. My bioload is not verry heavy( i am working now to a solution to add a signature or something with my tank details) and the skimmer is 1 1/2 - 2 times more then my tank volume and that's why I am not worry about and one of the reasons i am keeping the drain tube in the sump.
Still trying to figure out if it's something wrong with my unit or that's normal ( the amount of bubbles )
On the last 2 days it seems like the foam level is more stable but due i played arround a lot with the buffels and filters( trying to stop the bubbles) i am not sure. This week i am testing to see how is going with the foam level and that's why i was asking where should i set the foam level.

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Gav

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Reply #11

I run a curve 5 , I wouldn't worry too much about the height of the foam this will increase and decrease as the pollutants are delt with ,  it's more setting the water level in the neck of the skimmer . Ive found with certain foods (mainly RS frozen mysis)  the bubbles aren't held in the skimmer and come out of the outlet of the skimmer . I find taking off a few cups of wet skimate half hour after feeding can help stop this . I think it comes down to more proteins in the water than the skimmer can deal with . Also hands in the tank / water will kill the bubbles in the neck just about instantly and will take a couple of hours to reform . 
The water level in the neck of my skimmer sits about 1"-2" below the top of the neck and the bubbles produced always look white ,  its not till they settle in the cup that you see the dirt .
I've added a pic to show the water level in mine it's just below the white line of bubbles across the centre of the pic in the neck of the skimmer and as you can see the bubbles are white but the skimate is dark .

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HK_Fuey

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Reply #12

Good intro to skimmers:

razvanrudy

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Reply #13

I run a curve 5 , I wouldn't worry too much about the height of the foam this will increase and decrease as the pollutants are delt with ,  it's more setting the water level in the neck of the skimmer . Ive found with certain foods (mainly RS frozen mysis)  the bubbles aren't held in the skimmer and come out of the outlet of the skimmer . I find taking off a few cups of wet skimate half hour after feeding can help stop this . I think it comes down to more proteins in the water than the skimmer can deal with . Also hands in the tank / water will kill the bubbles in the neck just about instantly and will take a couple of hours to reform . 
The water level in the neck of my skimmer sits about 1"-2" below the top of the neck and the bubbles produced always look white ,  its not till they settle in the cup that you see the dirt .
I've added a pic to show the water level in mine it's just below the white line of bubbles across the centre of the pic in the neck of the skimmer and as you can see the bubbles are white but the skimate is dark .
Thanks @Gav this is what i am trying to achieve but my skimmer is looking like on the picture and i never get foam in the collection cup , always stay like that on that level and i only get that yellow , oil like. Should i go higher with the foam level?
If i go with the foam level close to the top in 1 -2 hour it will overflow. I have the impression that my bubble are coming to big and to fast in the neck and that's the reason why it keep overflowing.

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Gav

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Reply #14

That looks fine , if you need to adjust the water level up a bit in the neck it will only be by very very small increments from there , after each adjustment give it a few hours to see where the water level in the skimmer neck reaches , it will take a little time (as in a few weeks) to bed in and produce a good head on top of the water , but also be aware that the skimmer doesn't constantly bubble over , only when there is enough proteins in the water , mine doesn't sit like my pic permanently bubbling over , the bubble level goes up and down on top of the water in the neck . I notice you have a hose off the top of the air inlet , how long is the hose ? I also run a hose off the top of my air inlet , I had a narrower hose on mine but found it affected the bubble production too much and had to increase the hose width slightly and seemed to make the difference , my hose is approximately 2.5 m long .   

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