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Old 04-29-2007, 02:36 AM   #11
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You note in your post that your tank varies between 81 and 83. Is 81 the lowest it gets in the middle of the night? If so, then the temperature isn't killing your fish. There are sooooo many things that could be doing it, but I would put money on the fact that it isn't your clown fish.

Just a few questions to start down the road of what's wrong...

What are your water parameters? (Ammonia/nitrites/nitrates/pH/salinity)
What kind of filtration do you have? Live rock.. how much?
How warm is the room your tank sits in?
What exactly is your tank maintenance folks doing for you? Water changes only? Adding any additives?
How are the things dieing? Do they have spots on them? Look like they've been sprinkled with salt? Are they at the top gasping?

If you're only getting a two degree swing and your highest temp is 83, the temp isn't killing them. If you're worried about the heat, I'd put a fan over the sump. You'll be surprised how much evaporation will cool things down.
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Old 04-29-2007, 05:53 PM   #12
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I have to agree with Lisa that those temps are not the problem. When it comes to temps then stability is the key. If you are having a 4 or more degree change then that will be a problem. My suggestion would be to not have a top on your tank. It traps heat and causes lower PH problems due to poor gas exchange. This could be your problem. What are your water test results.
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Old 04-29-2007, 08:53 PM   #13
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We have taken out all of the powerheads so the only things running in the tank are the pumps in the sump... The main pump is a Magdrive 700.
That along w/ the tank having a cover leads me to believe PH is going to come back low.
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Old 04-29-2007, 09:40 PM   #14
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Here are the specs...
Nitrite 0
Nitrate 10
Salinity 1.024
pH 8.3
Alkalinity 300
Phosphate 0.25
Calcium 340

They do a water change of 15-20 gallons every two weeks. Every week, we also add 4 caps of Tech A & B, three drops of Lugols, 2 caps of Strontium and Molybdenum and 1 cap of ChromaPlex. I also have about 100+ lbs of live rock. The invertebrates do great in the tank. Its the fish that don't last. If its not the temp, what else could it be?
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Old 04-29-2007, 09:47 PM   #15
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That is alot of chemicals to be adding just for the heck of it. Do they test for iodine levels? Those things you mention, get replenished with the water changes. What is in the tank that can possibly be using it up before a water change occurs?

It is a good practice to not add anything that is not tested for.
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Old 04-29-2007, 10:11 PM   #16
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^ I totally agree. Many times people new to the hobby will see better results when they stop adding all that extra garbage. The only thing regular PWC's will not take care of is Ca and Alk in tanks stocked w/ stoney coral. (Tanks w/ SPS coral may also have a demand for magnesium additions) Don't forget that beside the salt mix, the food fed to the fish contains trace elements/minerals as well as. Many times tanks have an abundance of them, and PWC's work to reduce the levels.
Quote:
Nitrate 10
Salinity 1.024
pH 8.3
Alkalinity 300
Phosphate 0.25
Calcium 340
Alk 300? I assume you mean 3 meg/l.? Also your PO4 is very high. It should be .03 meg/l, ideally less. I suspect the chromaplex may have something to do w/ that.
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Its the fish that don't last. If its not the temp, what else could it be?
A couple of those things your dosing, ie iodine, are lethal to animals in levels higher than NSW. That may very well be the cause or at least part of the problem. I suggest discontinuing dosing everything, and just do 10-15% weekly PWC's. If you continue dosing, you will need to test for levels before making any additions. You may need to do a few large PWC's a few days apart to get your parameters back in line.
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Old 04-29-2007, 10:52 PM   #17
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One other thing to note is that with warmer temps, the fish will have a harder time with the oxygen levels in the water. If you have no water movement, then the fish could be suffocating.

Definitely stop with all the additives. They are not needed with just keeping fish for the most part.
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Old 05-08-2007, 06:06 PM   #18
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Last weekend I added a fan in the cabinet over the sump. Then I took the cover off the sump and added a powerhead since I had taken them all out. My temperature has been steadily going down to where it is 78 degrees today.

My tank maintenance people came out today and I told them about the forum's thoughts on the additives. They said that they can tell by looking at the tank and the condition of the corals and rock that the levels are appropriate without testing for them. I believe that to be complete BS. They insist that the problem was temperature. I have told them that I do not want to pay for any more fish until we can resolve the problem. They said that they will bring 1 royal gramma and two firefish at no cost to me replacing 3 of the fish I have lost in the last month or so. We'll see how it goes.

Other thoughts or just wait and see?
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Old 05-08-2007, 06:14 PM   #19
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Quote:
Originally Posted by gefilte
I believe that to be complete BS.
I agree, they should not longer be messing with your tank. Sounds like they possibly poisoned your fish by adding too many chemicals without testing. That shows very poor animal husbandry.
Just curious, you added the fan your self, why are you paying them?
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Old 05-08-2007, 06:51 PM   #20
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Sounds like the temp is coming down good, I would take the tops off the tank to help control heat and with gas exchange. Do you have another thermometer? I would pick up a cheap glass one and use it to compare temps, digital thermos can be off + or- 2-3 degrees.
First rule is to NEVER dose any additives unless you test first. Tell the fish tank guy he's a *** and then fire him.
Do they acclimate the fish or just toss them in?
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