Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Getting Started
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 08-12-2004, 10:06 AM   #1
Aquarium Advice Newbie
 
Join Date: Aug 2004
Location: Louisville, KY
Posts: 8
Confused About Cycling--Am I re-cycling? Why?

After a long almost 8 weeks, my 10 gal. tank finally cycled. In the process, I lost several fish. My water parameters after cycling were 0 ammonia; 0 nitrites; 20 nitrates;
PH 7.2.
I added three guppies one day after the cycling was completed. The tank contained only 2 platies.
Two weeks later, back to cycling again and the loss of two more fish. My ammonia has just gone down to 0 after being up to 5.0. Now the nitrites are creeping up.
What did I do wrong? Did I add fish too quickly?
This is getting frustrating.
Oh, and I've been doing daily water changes since the numbers have gone up again.
__________________

__________________
hummingbird114 is offline   Reply With Quote
Old 08-12-2004, 10:52 AM   #2
AA Team Emeritus
 
TankGirl's Avatar
 
Join Date: May 2003
Location: Richmond VA
Posts: 8,974
After you added the guppies, in the 2 weeks before you noticed the problem, did you clean your filter or otherwise do any cleaning to the tank?
__________________

TankGirl is offline   Reply With Quote
Old 08-12-2004, 11:43 AM   #3
Aquarium Advice Newbie
 
Join Date: Aug 2004
Location: Louisville, KY
Posts: 8
Tank Girl,
In that 2 week period I did another 25% water change and cleaned the filter by riinsing it in the removed tank water.
(I didn't clean it with fresh water.) I vacuumed the gravel and that's about it.
__________________
hummingbird114 is offline   Reply With Quote
Old 08-12-2004, 12:00 PM   #4
AA Team Emeritus
 
TankGirl's Avatar
 
Join Date: May 2003
Location: Richmond VA
Posts: 8,974
Since your load is not really enough to cause a mini-cycle, the only way I see this happening, and I don't know if this is the true culprit , would be that the bacteria was disrupted by the gravel vac'ing, and perhaps if there was a lot of debris in the bottom that got stirred up it could have caused this spike. In the early stages the bacteria will be somewhat easy to disrupt.

Again, I don't know if this is what happened, but the only thing to be done is going to be to continue what you are doing, which is water changes, and the addition of about a tablespoon of aquarium salt and lowering the water level to create splashing or a bubble wand for aeration, which is going to help the fish with nitrite poisoning.

Good luck, and sorry for the setback!
TankGirl is offline   Reply With Quote
Old 08-12-2004, 01:35 PM   #5
Aquarium Advice Newbie
 
Join Date: Aug 2004
Location: Louisville, KY
Posts: 8
Thanks, Tank Girl. If vacuuming the gravel disturbs the good bacteria and what caused it to re-cycle, should I just do the water changes now without vacuuming. How would I get rid of the debris without vacuuming the gravel?
This hobby is more complicated hat I thought it would be but I'm not giving up yet.
__________________
hummingbird114 is offline   Reply With Quote
Old 08-12-2004, 01:47 PM   #6
AA Team Emeritus
 
TankGirl's Avatar
 
Join Date: May 2003
Location: Richmond VA
Posts: 8,974
Yep, I hear ya! The science gets mixed up with the art of the thing.

What you can do for now is cut back on feeding so there is not anything sitting there except the fish waste. When you do want to suction up the gunk just hold the syphon tube close to the gravel and let it suck up what it can without actually digging into the substrate, so nothing is disturbed. You might want to do just a portion of the tank bottom with each water change, so you can concentrate on specific areas without feeling like you have to get it all in one shot.

Hopefully this will resolve itself and you won't have any more losses-
TankGirl is offline   Reply With Quote
Old 08-12-2004, 06:08 PM   #7
Aquarium Advice Newbie
 
Join Date: Aug 2004
Location: Louisville, KY
Posts: 8
Thanks again, Tank Girl. You've been very helpful. I'll definitely follow your advice when doing water changes.
__________________
hummingbird114 is offline   Reply With Quote
Old 08-12-2004, 11:49 PM   #8
Moderator Emeritus
 
Menagerie's Avatar
 
Join Date: Jan 2004
Location: Vancouver, WA
Posts: 13,230
Just wanted to welcome you to the board (since TG explained everything already)

[center:a15c6b20e4] Welcome to AA, hummingbird114! [/center:a15c6b20e4]
__________________

Menagerie is offline   Reply With Quote
Old 08-13-2004, 02:36 AM   #9
Aquarium Advice Freak
 
Join Date: Jun 2004
Location: Moore Oklahoma
Posts: 412
I am wondering what the size of the 2 plattys are. depending on size, the 3 guppys could have come close to doubling the bio load. That could cause a spike.

When I clean the gravel I sink the tube down about half the substrate depth. I only clean between a third to half the bottom per week. Havent had any problems doing it this way. It could be the bio-wheel holds enough bacteria that disturbing the gravel has no effect.
__________________
A 37 GL but its really 27gl when full
Security at the expense of freedom results in neither.
chasgood is offline   Reply With Quote
Old 08-13-2004, 05:09 PM   #10
Aquarium Advice Newbie
 
Join Date: Aug 2004
Location: Louisville, KY
Posts: 8
Menagerie. Thanks for the welcome........and a big congratulations to you.
Chasgood. One of the Platys (both are no longer with us) was very large for a platy.....so your theory may very well be the cause of the problem. I'm probably better off sticking with guppies considering the size of the tank. One thing for sure is no more fish for a while. I'll stick with the three guppies I have and hope that they make it through this.
__________________

__________________
hummingbird114 is offline   Reply With Quote
Reply

Tags
cycling

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cycling issues, I'm confused A4Ryan Freshwater & Brackish - Getting Started 4 09-09-2008 08:09 PM
Confused with cycling in 5g hex... new2betas Freshwater & Brackish - Getting Started 36 08-26-2008 09:39 AM
Im Cycling and i am confused JoshsReef Saltwater & Reef - Getting Started 5 08-15-2007 04:36 PM
CLEANING the tank during cycling...CONFUSED???? Bubble_Boy Freshwater & Brackish - Getting Started 6 11-19-2004 11:55 AM
New Tank - Cycling, but confused ... atif Saltwater & Reef - Getting Started 3 07-21-2003 08:50 AM







» Photo Contest Winners







All times are GMT -4. The time now is 04:18 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.