Water Chemical For Discus Fish

Rafid
  • #1
Hi
Good day

I did some tests for water and results were as below :

Ammonia : less than 0.25 ppm
Nitrite : 0
Nitrate: more than 40 ppm
GH: 5
KH : 2

What do you think about Nitrate and GH levels for discus ? I’m dose daily fertilization as below :


4955D60C-AB9A-4E9B-83A4-35AB983608ED.jpeg
 

Advertisement
coralbandit
  • #2
160 nitrates and you are thinking about discus huh?
Discus prefer pristine water and a nitrate level of 30 or 40 is probably higher them most serious discus keepers would want let alone 160...you're adding nitrates to your tank only to have a discus orientated person tell you to change water almost if not everyday...Which would then remove the nitrates you just added.
160 is really pretty high for any fish tank and over time it will cause damage possibly to even some of the hardiest fish...
 

Advertisement
Discus-Tang
  • #3
The nitrate is way, way too high. It should be <20ppm. GH looks fine, but you should bring the KH up using baking soda, to prevent pH swings. AI'm for 6-10.
 
Rafid
  • Thread Starter
  • #4
160 nitrates and you are thinking about discus huh?
Discus prefer pristine water and a nitrate level of 30 or 40 is probably higher them most serious discus keepers would want let alone 160...you're adding nitrates to your tank only to have a discus orientated person tell you to change water almost if not everyday...Which would then remove the nitrates you just added.
160 is really pretty high for any fish tank and over time it will cause damage possibly to even some of the hardiest fish...
Sorry it was my fault nitrate level was more than 40 ppm
 
Discus-Tang
  • #5
Can you put the guaranteed analysis of the fertiliser so we can figure outif it's good?
 
esdwa
  • #6
Fertilizer? I thought fish is the objective.

I have very similar kh (3) and gh (5) at my tap (&tank) water and since my tank does automatic daily wc of 25% kh has no chance to drop causing ph swing.

Discus love "soft" (low GH) water. They tolerate well nitrates up to 30-40 with that.

My advice. Stop messing water with those fertilizers or give the discus to someone's else. Good luck.
 

Advertisement



Rafid
  • Thread Starter
  • #7
Can you put the guaranteed analysis of the fertiliser so we can figure outif it's good?

Here we go


6C7B01C3-8B71-405B-B50F-0CE9712F88CC.jpeg
 
Rafid
  • Thread Starter
  • #8
Fertilizer? I thought fish is the objective.

I have very similar kh (3) and gh (5) at my tap (&tank) water and since my tank does automatic daily wc of 25% kh has no chance to drop causing ph swing.

Discus love "soft" (low GH) water. They tolerate well nitrates up to 30-40 with that.

My advice. Stop messing water with those fertilizers or give the discus to someone's else. Good luck.

Thanks for reply , I’m thinking to reduce the dose unfortunately I can't stop using fretilizres because I have heavy planted tank
Thx
 
86 ssinit
  • #9
Do you have the fish allready? How big is the tank? Pictures. Plants are great in a discus tank. Best to get easy growers and have a separate plant tank. This way you can move plants if you have to. Water temp is in the 80s and a ph of 6.9 or lower is needed. They like warm soft acidic water. Pictures will help. Thanks and welcome to fishlore.
 
Rafid
  • Thread Starter
  • #10
Do you have the fish allready? How big is the tank? Pictures. Plants are great in a discus tank. Best to get easy growers and have a separate plant tank. This way you can move plants if you have to. Water temp is in the 80s and a ph of 6.9 or lower is needed. They like warm soft acidic water. Pictures will help. Thanks and welcome to fishlore.

Thanks for reply
Yes I had. Around 160 L and temp is 28c
Here you go

3205410D-7510-4FF7-8849-987BF458A40F.jpeg H
 

Advertisement



86 ssinit
  • #11
Wow beautiful tank. What is the temp. Now your first post says your nitrates are at 40ppm why are others saying 160? What size tank?
 
Rafid
  • Thread Starter
  • #12
Wow beautiful tank. What is the temp. Now your first post says your nitrates are at 40ppm why are others saying 160? What size tank?

Thanks. Temp is 28 celsius. Yea it was my fault I thought nitrate was 160 ppm but I did test again and found the correct level over 40 ppm and not 160 ^_^
 
86 ssinit
  • #13
I’m in the US so had to convert lol. Yes that’s 82.4 which is fine for discus. How big of a tank.
Sorry just was the 160l that’s 40gal here. So that tank can take 2 discus.
 
Rafid
  • Thread Starter
  • #14
I’m in the US so had to convert lol. Yes that’s 82.4 which is fine for discus. How big of a tank.
Sorry just was the 160l that’s 40gal here. So that tank can take 2 discus.

Sorry for that yes its 82.4 F. Tank dims : 100 x 40 x 45 CM

I keep 4 but small size so what do you think ?
 

Advertisement



esdwa
  • #15
Thanks for reply , I’m thinking to reduce the dose unfortunately I can't stop using fretilizres because I have heavy planted tank
Thx
Have you thought about co2 instead?
 
Rafid
  • Thread Starter
  • #16
Have you thought about co2 instead?

I have problem here If I reduced co2 injection then light will be burned the plants
 
esdwa
  • #17
As much as I admire you work done so far and most likely your desire to introduce discus here, I do not believe this tank is for them.

Aside of fact it's too small, even if it was larger... with your focus on plants comes a trade of. First you would need to do daily water changes... which would partially obliterate your fertilizing efforts, completely change water profile also by having a fish in it.

Second heavily planted tank of this size make the fish living space even smaller. For fast growing and relatively large discus that would be below the comfort and could even cause issues for proper fish grow.

And what's not the most important objective when keeping beautiful fish like discus... or any other fish... is?

It's their comfort and well being.

Please keep this in mind when making your decision. Good luck.
 
86 ssinit
  • #18
Are you saying you have 4 allready? And your already dosing co2? Tank not liquid?
I’ve kept discus in a planted tank but never used co2 or fertilizers just root tabs.
 

Advertisement



Discus-Tang
  • #19
Have you thought about co2 instead?
Co2 has a completely different job than fertiliser. In a tank with high light, I'd say they are usually both necessary.
 
esdwa
  • #20
Co2 has a completely different job than fertiliser. In a tank with high light, I'd say they are usually both necessary.
Well, either way both are not needed and imho not desired to keep discus healthy and comfortable.
 
Discus-Tang
  • #21
Well, either way both are not needed and imho not desired to keep discus healthy and comfortable.
Well, extra minerals shouldn't do the discus harm, except macronutrients like nitrogen and phosphorus, which are safe in low amounts anyway.
 
esdwa
  • #22
No need to debate, it's my personal opinion, not implied to you nor anyone else.

So feel free to ignore it.
 
Rafid
  • Thread Starter
  • #23
Thank you for reply all , I just decided to buliding new tank specialist in discus fish,

On other hand could you check below photos and advise is it sick or normal please ?

954E6096-DBC4-4200-ADE6-58514192C324.jpeg
7298B0FB-E24B-48E9-99AD-29E4B55C1E80.png
 

Similar Aquarium Threads

Replies
6
Views
348
Arkodios
Replies
6
Views
168
A201
  • Locked
  • Question
Replies
12
Views
2K
Mertgezer
  • Locked
Replies
9
Views
7K
fjh
  • Locked
  • Question
Replies
13
Views
2K
H Farnsworth
Advertisement







Advertisement



Top Bottom