drop checker - how much tank water to let in - The Planted Tank Forum
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post #1 of 8 (permalink) Old 08-21-2017, 03:44 PM Thread Starter
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drop checker - how much tank water to let in

Funny question here. My drop checker keeps slipping off the suction cup and falling to the bottom of the tank. The suction cup itself doesn't appear to be defective. Perhaps the fit isn't right. I do notice that, the more air is trapped in the fat part of the glass chamber of the drop checker, the more buoyancy the drop checker has and the more upward pressure for the unit to come off the suction cup. I'm now trying to expel more of the air bubbles in the drop checker and let the tank water come up most of the way up the chamber without spilling over to the other side and contaminating my 4dkh solution. I also want to make sure I leave enough air for the drop checker to do its thing. Just curious whether anyone else faces this issue and whether you have any other solutions. I may just need to get another drop checker. Thanks!
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post #2 of 8 (permalink) Old 08-21-2017, 03:58 PM
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You shouldn't need to let any air out. Mine is filled with the solution, inverted, and placed on the suction mount. The first one I had did the same thing that yours is. I ended up buying a new one for 10 bucks or so off Amazon and it never slips off. In fact, it is pretty tough to get off now. I bought the NilOG Aquatics brand drop checker kit.

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post #3 of 8 (permalink) Old 08-21-2017, 05:17 PM
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You could use a drop checker that you hang on the glass of the aquarium. I like them. Make sure to keep the water level high. Not really a problem when doing weekly water changes.

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post #4 of 8 (permalink) Old 08-23-2017, 06:49 PM
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I've replaced most suction cups with magnets. I'm done cleaning algae off the back of the tank just to get cups to work when I want to rearrange moss ledges

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post #5 of 8 (permalink) Old 08-26-2017, 03:04 PM
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Originally Posted by FishRFriendz View Post
I've replaced most suction cups with magnets. I'm done cleaning algae off the back of the tank just to get cups to work when I want to rearrange moss ledges

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I recommend using plastic covered rare earth magnets for this.

I just changed my 3 gallon pico tank to planted, over from reef. But when it was reef, I used those magnets to hold rocks up to create a ledge, so they can hold a few lbs pretty easy.

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Originally Posted by miktrebor View Post
Funny question here. My drop checker keeps slipping off the suction cup and falling to the bottom of the tank. The suction cup itself doesn't appear to be defective. Perhaps the fit isn't right. I do notice that, the more air is trapped in the fat part of the glass chamber of the drop checker, the more buoyancy the drop checker has and the more upward pressure for the unit to come off the suction cup. I'm now trying to expel more of the air bubbles in the drop checker and let the tank water come up most of the way up the chamber without spilling over to the other side and contaminating my 4dkh solution. I also want to make sure I leave enough air for the drop checker to do its thing. Just curious whether anyone else faces this issue and whether you have any other solutions. I may just need to get another drop checker. Thanks!
It's your suction cup. My drop checker is no where near being like that. As a matter of fact, I can put pressure on mine to clean it and it never moves at all.

All I know too say is clean the glass real good, clean the back of the suction cup and give it a try. Sounds like you've done that, so next step is to replace the suction cup and/or drop checker. You can get replacement suction cups at petsmart for a few dollars, actually comes in a pack of 6 or 8.
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post #6 of 8 (permalink) Old 08-26-2017, 09:04 PM
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Quote:
I've replaced most suction cups with magnets. I'm done cleaning algae off the back of the tank just to get cups to work when I want to rearrange moss ledges
Quote:
Sent from my ZTE A2017U using Tapatalk
I recommend using plastic covered rare earth magnets for this.

I just changed my 3 gallon pico tank to planted, over from reef. But when it was reef, I used those magnets to hold rocks up to create a ledge, so they can hold a few lbs pretty easy.
if you can get a piece of pure nickel you attache that with glue to the drop checker and place the magnet outside of the tank. Nickel is also magnetic and it is corrosion resistant Also plants need about 1ppb of nickel to grow. So any small amount that does corrode or flake off will not hurt your tank. And also the metals of the magnet will not gt in your water.

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Quote:
I've replaced most suction cups with magnets. I'm done cleaning algae off the back of the tank just to get cups to work when I want to rearrange moss ledges
Quote:
Sent from my ZTE A2017U using Tapatalk
I recommend using plastic covered rare earth magnets for this.

I just changed my 3 gallon pico tank to planted, over from reef. But when it was reef, I used those magnets to hold rocks up to create a ledge, so they can hold a few lbs pretty easy.
if you can get a piece of pure nickel you attache that with glue to the drop checker and place the magnet outside of the tank. Nickel is also magnetic and it is corrosion resistant Also plants need about 1ppb of nickel to grow. So if any small amount that does corrode or flake off will not hurt your tank. And also the metals of the magnet will not get in your water. You can get nickel and nickel iron alloy from mcmaster.com
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post #7 of 8 (permalink) Old 08-27-2017, 08:23 PM Thread Starter
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Thanks all! I am going to look into replacement suction cups and/or magnets. My "solution" at the moment is to let the drop checker sit at the bottom of the tank. No fish so no problem!
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post #8 of 8 (permalink) Old 08-28-2017, 01:07 AM
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I picked up a tip some where about old stiff suction cups. I put my drop checker suction cup in a coffee mug and water. I microwave it a minute then let it sit a few more minutes in the hot water. I then quickly set it up and the cool water from the tank cools it down and it stays stuck very well. HTH
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