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Re:Holes in head all over the place
Thursday, February 14, 2013 2:52 PM
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Originally Posted by JimWelsh
Are you checking for both AC as well as DC stray voltage? For AC, are you checking with one probe well connected to your AC ground? Are you checking with all of your lights and other equipment on (in my case, it was the ballasts for my T5 actinics that was causing the stray voltage; with those lights off, I showed no stray voltage)? I tested AC in that manner. I'm going to look for DC testing if i can
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Re:Holes in head all over the place
Thursday, February 14, 2013 9:56 PM
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Originally Posted by joebean
thank you all for your input I run a algea scrubber in combination with vodka dosing. I thought it would allow me to run the system without water changes save for siphoning piles of junks. The problem here is that if you're not doing water changes, then certain elements are being stripped out of the system by the turf scrubber and NOT being replenished. So it may not be "Dirty" water so much "exhausted" water...
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Re:Holes in head all over the place
Thursday, February 14, 2013 10:45 PM
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Guys I beg for another minute of your lives Turns out there is something funny going on with voltage Please have a look at this vid and tell me if im testing correctly. I test a tank on the rack both on and off flow and getting the same reading (wtf?). I'm using a rotifer culture as comparison.
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Re:Holes in head all over the place
Thursday, February 14, 2013 11:07 PM
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I do see what you mean, but gee, I don't know... there are too many things that I still *don't* know about your setup. My knee-jerk theory to explain what you are showing in the video is that perhaps the stray voltage is coming up from your sump via residual water and/or salt in the drain lines. My suggestions are twofold: 1) Turn off each electrical thing in the system / area one at a time, and test until the stray voltage goes away. Once it is gone, the last thing you turned off is the source. In my case, it was the ballasts for my T5 lights on my 210 display, and they were injecting the stray voltage via EMI through the air -- without any direct connection to the tank water! 2) More importantly, simply get a grounding probe, install it correctly, and verify that it has solved the problem (which is what I did, in my case). I hope this helps. And again, we're not entirely sure that whatever stray voltage you have is the source of your problems.... By the way, I'm having a hard time reading the units and/or decimal places in your digital display. How many volts AC are you reading in the video?
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Re:Holes in head all over the place
Thursday, February 14, 2013 11:22 PM
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Keep in mind that there may be two things throwing stray voltage so be sure if you find one cause it is the only one.
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Re:Holes in head all over the place
Thursday, February 14, 2013 11:42 PM
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Originally Posted by JimWelsh
I do see what you mean, but gee, I don't know... there are too many things that I still *don't* know about your setup. My knee-jerk theory to explain what you are showing in the video is that perhaps the stray voltage is coming up from your sump via residual water and/or salt in the drain lines. My suggestions are twofold: 1) Turn off each electrical thing in the system / area one at a time, and test until the stray voltage goes away. Once it is gone, the last thing you turned off is the source. In my case, it was the ballasts for my T5 lights on my 210 display, and they were injecting the stray voltage via EMI through the air -- without any direct connection to the tank water! 2) More importantly, simply get a grounding probe, install it correctly, and verify that it has solved the problem (which is what I did, in my case). I hope this helps. And again, we're not entirely sure that whatever stray voltage you have is the source of your problems.... By the way, I'm having a hard time reading the units and/or decimal places in your digital display. How many volts AC are you reading in the video? It's 0.4 V at peak. Enough to harm fish? I already found about 0.25 coming from the return pump (centrifugal poseidon ps4), the rest i cant find yet. And yeah im getting a grounding probe tomorow.
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Re:Holes in head all over the place
Thursday, February 14, 2013 11:50 PM
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I don't think that is a whole lot of voltage. Probably not enough to cause issues (I had something like 15-20 VAC!). Still, the grounding probe certainly won't hurt anything.
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Re:Holes in head all over the place
Friday, February 15, 2013 12:55 AM
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I used a speaker line to ground it temporarily. Meter reads -0.01v im going to assume its working Theres two school of thoughts about stray voltage One says ground probes are bad because they allow current to flow thus electrifying the tank
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Re:Holes in head all over the place
Friday, February 15, 2013 11:29 AM
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I agree with Matt regarding the "exhausted" water. I also want to add that too much algae in a system, whether micro or macro, can cause problems. If you have too much algae, they tend to release secondary metabolites and without the use of carbon filtration, these metabolites build up over time and slowly depreciate the system. The plants are also going through a growth and decay process, which will diminish the water quality. By simply performing water changes regularly, you should be in better shape.
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Re:Holes in head all over the place
Saturday, February 16, 2013 10:28 PM
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Things that happened since i added the ground probe: 1 day after: breeding darwin pair i acquired 2 months ago laid its first nest in my system 2 days later: female ocellaris that was 20 days late on her spawn finnaly laid Could be totally coincidental. Hopefully next i will be reporting healings of lesions
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Re:Holes in head all over the place
Sunday, February 17, 2013 6:20 PM
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Re:Holes in head all over the place
Sunday, February 17, 2013 9:16 PM
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Ok, i'm an electrical dummy Turns out i was testing for DC the whole time. So for VAC (AC 120v) when the system was running it barely registered 0.4 volts I then unplugged my three pronged return pump and it spiked between 60-17 volts! The return pump was acting as a grounding probe all along! The culprits were two homedepot 48" and 36" fluorescent fixtures wired with twin prongs by yours truly. The fixtures didnt touch the tanks but it did touch my stand which is all metal i don't know if that plays a role. Wish i built my own out of wood now. Looking forward to reporting good news
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Re:Holes in head all over the place
Tuesday, February 19, 2013 12:43 PM
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All i can say is that just move your fish to a different aquarium. Then drain the tank, clean, scrub, preaty much take everything out of the aquarium and then get new stuff. That will only help the previous fish.
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Re:Holes in head all over the place
Friday, March 29, 2013 11:11 PM
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Is Ammonia poisonning possible ? I think my cycle became out of whack for some reason. I added a large tunze powerhead into the sump to create movement in the pile of liverock and things are improving. I can tell the vodka dosing is working better than it ever did by the skimmer filling up 3x faster. The damage appears to be non reversible but the head pits are healing/scaring. Every now and then a juvenile clown will die with no apparent disease on them. Internal damage from long exposure to ammonia? After reading the thread about kaldness I ordered a cubic foot of it. It makes so much sense and makes liverock look like an outdated dinosaur for processing waste.
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Re:Holes in head all over the place
Monday, March 17, 2014 8:41 PM
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This female was doing fine and spawning regularly then pits appeared on the forehead for a few months now and no spawning Today i noticed a bloody patch on the right side of her face. This is usually the death sentence. I'm taking down the whole system and will keep only two of my prized pairs (black snowflakes, picassos) out of 12 pairs I've tried pretty much every medications so far prazipro, paraguard, chloroquine phosphate, formalin dips I don't think i've used copper yet as this always seemed like an internal infection/parasite and fish death occurs after weeks/months of degeneration Someone suggested i feed my fish with praziquantel(prazipro) not sure how to do that
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Re:Holes in head all over the place
Tuesday, March 18, 2014 10:56 AM
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Can you get live adult brine shrimp? Feed the Prazi to the BS and then feed the BS to the fish. I've also made homemade medicated food by making a basic frozen mash with gelatin and mix the medication into the food.
Don't let fear and common sense stop you! =]
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Re:Holes in head all over the place
Tuesday, March 18, 2014 11:56 AM
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Originally Posted by joebean
Someone suggested i feed my fish with praziquantel(prazipro) not sure how to do that Dr G's sells 3 types of medicated frozen foods and one of them has Praziquantel in it. I haven't tried it but I was impressed with what they had to say when I talked to them about it at MACNA. http://www.drgsmarineaqua...edicated-fish-food.cfm
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Re:Holes in head all over the place
Wednesday, March 19, 2014 2:35 AM
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I heard of it but no medicated reef food is available in canada. The pond guys however have some, koi food ect. I made a gelatin food mash with metronidazole and some liquid prazipro, will report on that later
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