Betta Fish Care  
Go Back   Betta Fish and Betta Fish Care > Betta Fish Care
Check out the eBook Betta Fish Care Made Easy
betta fish
Thread Tools Search this Thread
Old 02-23-2014, 09:08 PM   #1 
Join Date: Jul 2012
Location: New York City
Advice Needed: Massive temp flux and seemingly sick/dying betta


Got my betta in May of last year as juvenile. He has been happy and healthy for almost a year. I regularly check and change the water. All has been good.

Last night I noticed for the first time temps almost in the 90's. Fish was fine. I unplugged the heater and adjusted the temp.. still kept triggering the heating element. I assumed the thermostat in the heater was shot, and continuously triggering the heating element.

Anyway.. I unplugged the heater last night and this morning the temp was around 73. Fish still seemed fine and vibrant.

I plugged back in the faulty heater to get the temps up.. and cycled it on and off by unplugging it. Temps cycled from high 70's through low 80's.. Throughout the day he seemed fine.. I bought a new 50w heater.. tested it in unconditioned water.. After testing (held a temp of 80 degrees perfectly) I dropped it in.. I'm sure it had some residual unconditioned water on.. but I assumed it was insignificant. Watched temps for a while.. locked at 80.. all good. Fish seemed fine.

About 2 hours after I put the new heater in, the fish is now on the bottom of the tank.. barely moving, white around the mouth and gills. He does swim around to go to the top for air and then comes back down again. I dropped a bit of food in his line of sight.. he darted for it.. but then came to rest again.

My question is.. is this likely a delayed reaction to the massive temp flux from the night before or possibly something else related to the new heater?

My old heater was a hydor 25w Theo, my new one is an Aqueon 50w. The new one might be considered slightly overkill for the size of the tank.. but not by much.

Any ideas? Does the shock usually pass? any guesses on something else? Should I have treated the new heater with something?

thanks so much!

I have:
5 gallon tank, filtered, cycled.
ammonia, nitrite, nitrate all good.
beddini is offline   Reply With Quote
Old 02-23-2014, 09:54 PM   #2 
Canuck Fins
Canuck Fins's Avatar
Join Date: Oct 2010
Location: Canada
It's always tough when our fish aren't well. I'm not sure what the problem is but maybe turn off the light for a little while. Sometime that will help a fish calm down if they are freaked out about something. Hopefully someone else will have a good idea for you. :)
Canuck Fins is offline   Reply With Quote
Old 02-23-2014, 10:04 PM   #3 
Reference Team
Hallyx's Avatar
Join Date: Jun 2011
Location: Fungus corners
It may be that the stress from the temperature excursions lowered his immunity.

Do a water change.

Ask for advice on the "diseases and emergencies" section. There are people there who know what to do.
Hallyx is online now   Reply With Quote
Old 02-23-2014, 10:12 PM   #4 
Bailmint's Avatar
Join Date: Jun 2013
Location: Virginia
Well that was a huge temperature change, I'd give it a day or two. I'd shut the lights off and throw a towel over the tank and just leave him be with the heater on for 24 hours.
Bailmint is offline   Reply With Quote
Old 02-23-2014, 10:35 PM   #5 
Join Date: Jul 2012
Location: New York City
Thanks for the input! I've shifted the thread to Betta Diseases/Emergencies
beddini is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Advice needed for unhappy betta alohafish Betta Fish Diseases and Emergencies 32 10-30-2013 12:35 PM
Best way to transport betta: advice needed! MamaBlue Betta Fish Care 1 06-26-2013 08:29 AM
Betta advice needed TheClaymore101 Betta Fish Care 4 12-16-2012 10:14 PM
Sick female, advice/help needed. Pod Betta Fish Diseases and Emergencies 4 03-31-2012 05:42 PM

All times are GMT -5. The time now is 10:13 AM.

Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.