Discus and aquaripure - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 7 Old 06-22-2014, 12:51 PM Thread Starter
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Discus and aquaripure

I have five small discus in a 70 gallon tank which I am keeping at 85 degrees and running an aquaripure along with an Eheim professional 3E with sediment filters only. There are some neons and corydoras. I also use a small , submersible activated carbon filter with aeration and separate aeration from a wand. The tank is perfectly cycled and shows zero nitrates.
Based on these conditions, I am extremely reluctant to get into the discus three times a week water change cycle widely used by keepers raising discus. I can't find any real logic in doing so and don't buy the trace element theory.
I am curious to know if others have successfully raised discus using the aquaripure and partial (25%) water changes every several months. My tank is also moderately planted.
Thanks!

Paul
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post #2 of 7 Old 06-23-2014, 09:08 AM
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I do understand Discus to be an "Advanced" keeper's fish due to them being incredibly fussy about their water conditions. Thus the numerous excessive water changes. Will you get a NitrAte build up with the aquaripure?

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post #3 of 7 Old 06-23-2014, 09:29 AM Thread Starter
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I do understand Discus to be an "Advanced" keeper's fish due to them being incredibly fussy about their water conditions. Thus the numerous excessive water changes. Will you get a NitrAte build up with the aquaripure?
The Aquaripure is one of the few filters which can eliminate or drastically reduce nitrates.
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post #4 of 7 Old 06-23-2014, 09:37 AM
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They probably will live but I don't think the TDS build up you will have could be ideal for them.

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post #5 of 7 Old 06-23-2014, 10:06 AM Thread Starter
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They probably will live but I don't think the TDS build up you will have could be ideal for them.
I'm curious to know if anyone knows the chemistry of their (discus) native water. I would imagine it to be far more complex in composition than the water typically used in our tanks.
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post #6 of 7 Old 06-23-2014, 11:07 AM
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I'm curious to know if anyone knows the chemistry of their (discus) native water. I would imagine it to be far more complex in composition than the water typically used in our tanks.
Na (mg/L) 2.3 0.8 0.380 0.124
K (mg/L) 0.9 0.2 0.327 0.107
Mg (mg/L) 1.1 0.2 0.114 0.035
Ca (mg/L) 7.2 1.6 0.212 0.066
Cl (mg/L) 3.1 2.1 1.7 0.7
Si (mg/L) 4.0 0.9 2.0 0.5
Sr (μg/L) 37.8 8.8 3.6 1.0
Ba (μg/L) 22.7 5.9 8.1 2.1
Al (μg/L) 44 37 112 29
Fe (μg/L) 109 76 178 58
Mn (μg/L) 5.9 5.1 9.0 2.4
Cu (μg/L) 2.4 0.6 1.8 0.5
Zn (μg/L) 3.2 1.5 4.1 1.8
Conductivity 57 8 9 2
pH 6.9 0.4 5.10.6
Total P (μg/L) 105 58 25 17
Total C (mg/L) 13.5 3.1 10.5 1.3
HCO3-C (mg/L) 6.7 0.8 1.7 0.5

Yes.. Far more complicated then I feel the need to replicate. However soft water , low TDS, and little to no nitrates is best. My bf and I have mostly the same water except his has higher TDS. There's a lot more going on in his source water in that regard. Our discus fail to thrive in his water and do very well in mine.
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Last edited by Agent13; 06-23-2014 at 11:15 AM.
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post #7 of 7 Old 06-23-2014, 02:39 PM Thread Starter
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Na (mg/L) 2.3 0.8 0.380 0.124
K (mg/L) 0.9 0.2 0.327 0.107
Mg (mg/L) 1.1 0.2 0.114 0.035
Ca (mg/L) 7.2 1.6 0.212 0.066
Cl (mg/L) 3.1 2.1 1.7 0.7
Si (mg/L) 4.0 0.9 2.0 0.5
Sr (μg/L) 37.8 8.8 3.6 1.0
Ba (μg/L) 22.7 5.9 8.1 2.1
Al (μg/L) 44 37 112 29
Fe (μg/L) 109 76 178 58
Mn (μg/L) 5.9 5.1 9.0 2.4
Cu (μg/L) 2.4 0.6 1.8 0.5
Zn (μg/L) 3.2 1.5 4.1 1.8
Conductivity 57 8 9 2
pH 6.9 0.4 5.10.6
Total P (μg/L) 105 58 25 17
Total C (mg/L) 13.5 3.1 10.5 1.3
HCO3-C (mg/L) 6.7 0.8 1.7 0.5

Yes.. Far more complicated then I feel the need to replicate. However soft water , low TDS, and little to no nitrates is best. My bf and I have mostly the same water except his has higher TDS. There's a lot more going on in his source water in that regard. Our discus fail to thrive in his water and do very well in mine.
Thanks! Where did you find the numbers?
I also forgot to mention that I use a Diatom filter on the tank for a few hours each week. Fresh water and fresh diatomaceous earth each time.
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