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Old 10-29-2006, 08:00 AM   #1 (permalink)
 
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Default diagnosis requested (photos)

woke up this morning to see some of my 3 week old petsmart plants withering.

I've been dosing 1 cap full of flourish (not excel) into my 75 gallon daily. i have a 2x96 watt ahsupply light kit.

The temp is set warm for discus and I suspect that may be the cause also but was wondering if ferts may be to blame.




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Old 10-29-2006, 08:03 AM   #2 (permalink)
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What are your NO3 and PO4 levels? If you're not feeding your (2?) discus enough, you're short on a your major nutrients.
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Old 10-29-2006, 08:07 AM   #3 (permalink)
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Don't see any photos.

What is the name of the plant that is withering?

Are you injecting C02?

What other ferts are you dosing?... I capful of flourish daily seems too little for a 75 gallon tank.

Here is a link to nutrient dificiencys... Nutrient Deficiency in a Planted Tank



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Old 10-29-2006, 08:49 AM   #4 (permalink)
 
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That's crypt rot or "meltdown". I don't know if anyone has figured out what causes it. I've seen it most often in response to sudden changes in environment, like the move home from pet store. Your plant may end up shedding all of its leaves. Don't worry, though. Crypts almost always grow back healthy from the roots if you leave them alone after a meltdown. Once the plant has grown new foliage, it is not likely to melt again unless you move it to another tank.
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Old 10-29-2006, 08:57 AM   #5 (permalink)
 
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Just DIY co2 for now. and I'm cooking up a new batch now.

According to the flourish bottle "use 1 capful (5ml) for each 60 gallons once or twice a week"
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Old 10-29-2006, 09:42 AM   #6 (permalink)
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You still need to address NO3 and PO4.
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Old 10-29-2006, 03:30 PM   #7 (permalink)
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The melting of the Crypts can happen anytime you move from different water parameters such as the LFS to your tank. With your light levels, you definately need to address both CO2 and nutrients, mainly NO3 and PO4. The plants may soon stop growing and when they do you will probably begin to see algae growth.

I run the same amount of light on one of my 75g tanks, but I use less intense T-8 tubes. Your CF bulbs should put out more light than my T-8s. Anytime I slack off on the ferts or have a CO2 issue, algae hits hard and fast! How many DIY CO2 bottles do you have on your 75G?
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