Started Fishless Cycle

Author Topic: Started fishless cycle  (Read 2720 times)

0 Members and 1 Guest are viewing this topic.

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Started fishless cycle
« on: July 29, 2018, 11:04:22 AM »
  • Likes On This Users Post
Hi, I have started the fishless cycle of my 200 LTR aquarium, I added 4ml of ammonia three days ago and ammonia ppm was around 4 - 5 , I added another 3ml of ammonia today and ppm is the same and there is no nitrite reading ? is this normal ? This is the first time I have done a fishless cycle so have nothing to compare it to   :-\ ,

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #50 on: August 27, 2018, 04:03:42 PM »
  • Likes On This Users Post 0
OK just read it again, will wait and get another 0 ammonia hopefully tomorrow and then add to bring back up to 3 ppm.

Offline Sue

  • Global Moderator
  • Hero Think Fishy Member
  • *****
  • Posts: 8466
  • Likes: 265
Re: Started fishless cycle
« Reply #51 on: August 27, 2018, 04:15:13 PM »
  • Likes On This Users Post 0
If you added 3 ppm ammonia on Saturday, do another test of Wednesday, and if ammonia is till zero, add just 1 ppm ammonia. This is to keep the ammonia eaters fed while the nitrite eaters multiply without making so much nitrite that the cycle stalls.
Nitrite of 15 ppm inhibits the growth of the nitrite eaters. But our test kits don't go that high, and to get a realistic results by diluting tank water we would need pure water to dilute it with and very accurate measuring equipment.

In theory, you added 3 ppm ammonia to start the cycle, then 3 ppm on Saturday when ammonia dropped. 6 ppm in total. Since 1 ppm ammonia makes 2.7 ppm nitrite, that 6 ppm ammonia will turn into 12.2 16.2ppm. If you add another 3 ppm, that will make another 8 ppm nitrite which will push it well over the critical 15 ppm. It won't be quite that much because there will be a few nitrite eaters, and they will increase slowly in number, but they won't make a huge impact on the nitrite level for a while yet. So we add just 1 ppm so the ammonia eaters don't go hungry, and this should not push nitrite over 15 ppm.


Edited for terrible maths. 2.7 x 6 is 16.2 not 12.2 like I said  :-[

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #52 on: August 27, 2018, 04:43:25 PM »
  • Likes On This Users Post 0
OH WoW , this is getting technical  :) Ok that's good, i'm off work Wednesday so i'll check then. Thank you  :)

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #53 on: September 04, 2018, 11:34:28 PM »
  • Likes On This Users Post 0
Another week on, and i'm getting 0 ammonia results after adding 1ppm every two days. The nitrites are dropping and would say they are somewhere between 1 and 2, i will check again tomorrow before i add more ammonia, but things are definitely moving in the right direction.
The water is very clear and i noticed tonight when doing the tests that it smells like a fish tank, if you know what i mean  :), which considering i don`t have any fish in there surprised me a bit.

Offline Sue

  • Global Moderator
  • Hero Think Fishy Member
  • *****
  • Posts: 8466
  • Likes: 265
Re: Started fishless cycle
« Reply #54 on: September 05, 2018, 09:13:21 AM »
  • Likes On This Users Post 0
That's good news. I know that it can get frustrating just waiting. But you are almost there now  :)


Online Littlefish

  • Global Moderator Subscriber
  • Hero Think Fishy Member
  • *****
  • Posts: 3075
  • Likes: 238
  • aka Donna
Re: Started fishless cycle
« Reply #55 on: September 05, 2018, 10:06:43 AM »
  • Likes On This Users Post 0
Great to hear that your cycle is doing well.  :)

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #56 on: September 05, 2018, 10:21:01 AM »
  • Likes On This Users Post 0
Good morning, I have just done tests again and ammonia is still 0, nitrites have dropped again to 0.25 and nitrates are somewhere between 10 and 20 ppm. Without looking am i right in thinking that i test again tomorrow and if still the same i add the full 3ppm and then if all is OK after 24 hours the cycle is complete.

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #57 on: September 05, 2018, 10:26:04 AM »
  • Likes On This Users Post 0
Just read it again, i'll add the 3ppm today and check again tomorrow. If the nitrate level is still between 10 and 20 ppm , do i still do the big water change ??

Offline Sue

  • Global Moderator
  • Hero Think Fishy Member
  • *****
  • Posts: 8466
  • Likes: 265
Re: Started fishless cycle
« Reply #58 on: September 05, 2018, 05:24:33 PM »
  • Likes On This Users Post 0
Remind me, did you use any bicarb? I know we discussed it. If you did then when you get the double zeros 24 hours after adding ammonia, you will need to do a big water change to remove the bicarb. And the nearr you can get nitrate to you tap level, the better.

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #59 on: September 05, 2018, 06:33:22 PM »
  • Likes On This Users Post 0
Yes, i did use bicarb, so will do a big water change. Is it OK to clean the substrate as well ??

Offline Sue

  • Global Moderator
  • Hero Think Fishy Member
  • *****
  • Posts: 8466
  • Likes: 265
Re: Started fishless cycle
« Reply #60 on: September 05, 2018, 06:47:47 PM »
  • Likes On This Users Post 0
I would leave the substrate alone for now. There has been no uneaten fish food or fish poo to mess it up, and as the substrate is home to more bacteria than just the filter bacteria, don't do anything with it until you need to. The amount of bicarb in the water in the substrate is not enough to do any harm.

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #61 on: September 05, 2018, 09:16:00 PM »
  • Likes On This Users Post 1
OK thank you Sue , hopefully have a few fish by the weekend  :)

Online Littlefish

  • Global Moderator Subscriber
  • Hero Think Fishy Member
  • *****
  • Posts: 3075
  • Likes: 238
  • aka Donna
Re: Started fishless cycle
« Reply #62 on: September 05, 2018, 09:18:06 PM »
  • Likes On This Users Post 0
Exciting times.  ;D

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #63 on: September 06, 2018, 01:31:49 PM »
  • Likes On This Users Post 0
Ha ha yes, it will be nice to finally get some fish in the tank, my grandchildren are very excited.
So, I have just test again after 24 hr and i now have ammonia at 0.2 it is more towards 0 if i'm honest but just not quite there according to my chart, nitrites are 0.75, on my chart. I will wait 24 hrs before testing again tomorrow.

Online Littlefish

  • Global Moderator Subscriber
  • Hero Think Fishy Member
  • *****
  • Posts: 3075
  • Likes: 238
  • aka Donna
Re: Started fishless cycle
« Reply #64 on: September 06, 2018, 02:03:44 PM »
  • Likes On This Users Post 0
 :)

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #65 on: September 08, 2018, 02:41:12 PM »
  • Likes On This Users Post 0
 Just done another test today after adding ammonia yesterday. I had 0 ammonia and less than 0.25 nitrite. I am so close to completing the cycle now  :) will test again tomorrow and add ammonia .

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #66 on: September 10, 2018, 12:42:21 PM »
  • Likes On This Users Post 0
So i added ammonia yesterday and today i have 0 ammonia and 0 nitrite  :). Water change and fish next. How many fish would you advise, i was thinking of maybe four or five to begin with ? I really want to get Cory's but am i right in thinking it's best to wait for the tank to mature ?
Thank you for all the advice and help i have received to get my tank cycled, I really do appreciate it.

Offline Sue

  • Global Moderator
  • Hero Think Fishy Member
  • *****
  • Posts: 8466
  • Likes: 265
Re: Started fishless cycle
« Reply #67 on: September 10, 2018, 04:12:42 PM »
  • Likes On This Users Post 0
In theory you can get all your fish. But yes, I would wait a couple of months for the cories. Some species are more delicate than others, or in other words some species need a more mature tank than others. I think it is mainly the smaller species that need to wait longer.

If you get four or five fish to begin with, the bacteria you've just spent ages growing will start to go dormant. I would get all but the cories within a couple of weeks.

Offline Matt

  • @ScapeEasy on Instagram
  • Global Moderator
  • Hero Think Fishy Member
  • *****
  • Posts: 1560
  • Likes: 151
  • www.ScapeEasy.co.uk
Re: Started fishless cycle
« Reply #68 on: September 10, 2018, 07:16:43 PM »
  • Likes On This Users Post 0
Remind us what species you wanted @Andy64 and we can check this list for any others that do better in a more mature tank :)

Offline Andy64

  • Fishy Member
  • **
  • Posts: 41
  • Likes: 2
  • Tropical Fish Forum User
Re: Started fishless cycle
« Reply #69 on: September 10, 2018, 10:58:28 PM »
  • Likes On This Users Post 0
That's good news Sue i thought i may have to stock a few at a time to avoid a spike in ammonia ect. I have had four black neon tetras today and will buy more of the same soon , they seem to be doing fine and enjoying the space in the tank at the moment. They do seem very active, which is good. Matt - i just want a busy community tank with a bit of colour. I will get more fish this week so any advice is welcome  :). I have checked nitrates after the water change and i would say they are between 5 - 10 , so i am very happy with how it all seems at the moment. I haven't fed the fish yet but will feed them tomorrow.

Offline Sue

  • Global Moderator
  • Hero Think Fishy Member
  • *****
  • Posts: 8466
  • Likes: 265
Re: Started fishless cycle
« Reply #70 on: September 11, 2018, 10:49:54 AM »
  • Likes On This Users Post 0
The idea behind fishless cycling is that you grow more bacteria than a sensibly stocked tank of fish will need. Obviously a grossly over stocked tank will make more ammonia than the bacteria can cope with, but stay within the community creator guidelines and it is fine to get all but those fish that need a mature tank as soon as the cycle finishes.

See less of these, become a Super Subscriber today! We also have sponsorship opportunities for tropical fish related businesses from just 20 per month.

** Become a ThinkFish Super Subscriber **

It takes time and money to keep ThinkFish going, if you'd like to help, then a Subscription of your choice would be fantastic. Your subscription will help fund new articles, help pay for server costs and help fund development and promotion initiatives, helping us bring you more of the good stuff you love! You'll also see less ads. Why not become a Super Subscriber today!?

We also have sponsorship opportunities for tropical fish related businesses from just 20 per month.

Tags:
 


Think Fish © 2004-2018 | Keeping Tropical Fish Forum - Everything you need for your Tropical Fish hobby
Tropical Fish Market Place
SEO Services in Kent
Legal | Contact Follow Think Fish on: