Temperature drop during cycle

lolSam · 10/18/2015, 12:22 AM

Hi all,

I am on day 18 of my first tanks cycle. It is a 90L AIO cube.

Yesterday I reroute some cables and forgot to turn my heater back on. It has been off for approx. 24hrs.

My temperature has dropped from a stable 26c (28.8F) to 19c (66.2F)

Luckily this is a fish less cycle so no casualties. I hope my stupid mistake hasn't set me back but I am glad I made it now rather than later.

My question is, will my cycle be affected?

Dkuhlmann · 10/18/2015, 04:26 AM

Shouldn't be affected by it I would think

Has your tank spiked ammonia yet? Do you have any nitrites or nitrates?

lolSam · 10/18/2015, 04:31 AM

Quote:

Originally Posted by Dkuhlmann

Shouldn't be affected by it I would think

Has your tank spiked ammonia yet? Do you have any nitrites or nitrates?

Plenty of nitrates (0.5 - 0.10) no nitrites and it hovers around 0.25ppm ammonia (Red Sea kit)

I didn't actively monitor for ammonia but if I drop a full block of bloodworms in and test ammonia 24hrs later it shows 0.25 (last 2-3 tests through the week)

Ocean envy · 10/18/2015, 05:16 AM

I wouldn't worry about it. It probably just slightly extended the time till the
end of the cycle. No biggie.

lolSam · 10/18/2015, 05:19 AM

Quote:

Originally Posted by Ocean envy

I wouldn't worry about it. It probably just slightly extended the time till the
end of the cycle. No biggie.

Great, thank you.

I'll be making sure I double check my equipment too.

Dkuhlmann · 10/18/2015, 05:31 AM

Also try another ammonia test, some can read falsely as I think yours has done. With what you say it comes back down to the .25 Which I'm thinking is actually 0 you are cycled. But please confirm this with maybe your lfs testing it.

lolSam · 10/18/2015, 05:34 AM

Quote:

Originally Posted by Dkuhlmann

Also try another ammonia test, some can read falsely as I think yours has done. With what you say it comes back down to the .25 Which I'm thinking is actually 0 you are cycled. But please confirm this with maybe your lfs testing it.

I have heard of the API kits doing this but Red Sea? My kit read 0 one time this week. I didn't feed the tank today so I can see if it drops to 0 tomorrow. If not I'll take some water to my LFS.

Dkuhlmann · 10/18/2015, 06:26 AM

You never know, that is why I always check against another kit just to make sure. Yes it could be correct, but with the way your saying sounds like its cycled. Just odd to go down to the .25 reading every time with no nitrites.

10/18/2015, 12:22 AM	#1
lolSam Registered Member Join Date: Sep 2015 Posts: 15	Temperature drop during cycle Hi all, I am on day 18 of my first tanks cycle. It is a 90L AIO cube. Yesterday I reroute some cables and forgot to turn my heater back on. It has been off for approx. 24hrs. My temperature has dropped from a stable 26c (28.8F) to 19c (66.2F) Luckily this is a fish less cycle so no casualties. I hope my stupid mistake hasn't set me back but I am glad I made it now rather than later. My question is, will my cycle be affected?

10/18/2015, 04:26 AM	#2
Dkuhlmann Registered Member Join Date: Mar 2015 Location: NW Iowa Posts: 8,823	Shouldn't be affected by it I would think Has your tank spiked ammonia yet? Do you have any nitrites or nitrates? __________________ Previous tanks: 200 gal fowlr 9" Emperor Angel and many different butterfly fish 4" maroon clown and several other fish, 50 gal sump, 40 gal mixed reef/fish mostly softies and LPS. Current Tank Info: 40b 750 gph 45 lbs lr, 2"-3" sand, 165w full spectrum dimable LED, 20 gal sump/refugium 30 lbs lr, Bak Pak 2 skimmer, 4" sock temp 79-80, sg 1.026, NH3 0, NO2 0, NO3 <10, ph 8.2, calc 400, mag 1300

10/18/2015, 05:31 AM	#6
Dkuhlmann Registered Member Join Date: Mar 2015 Location: NW Iowa Posts: 8,823	Also try another ammonia test, some can read falsely as I think yours has done. With what you say it comes back down to the .25 Which I'm thinking is actually 0 you are cycled. But please confirm this with maybe your lfs testing it. __________________ Previous tanks: 200 gal fowlr 9" Emperor Angel and many different butterfly fish 4" maroon clown and several other fish, 50 gal sump, 40 gal mixed reef/fish mostly softies and LPS. Current Tank Info: 40b 750 gph 45 lbs lr, 2"-3" sand, 165w full spectrum dimable LED, 20 gal sump/refugium 30 lbs lr, Bak Pak 2 skimmer, 4" sock temp 79-80, sg 1.026, NH3 0, NO2 0, NO3 <10, ph 8.2, calc 400, mag 1300

10/18/2015, 06:26 AM	#8
Dkuhlmann Registered Member Join Date: Mar 2015 Location: NW Iowa Posts: 8,823	You never know, that is why I always check against another kit just to make sure. Yes it could be correct, but with the way your saying sounds like its cycled. Just odd to go down to the .25 reading every time with no nitrites. __________________ Previous tanks: 200 gal fowlr 9" Emperor Angel and many different butterfly fish 4" maroon clown and several other fish, 50 gal sump, 40 gal mixed reef/fish mostly softies and LPS. Current Tank Info: 40b 750 gph 45 lbs lr, 2"-3" sand, 165w full spectrum dimable LED, 20 gal sump/refugium 30 lbs lr, Bak Pak 2 skimmer, 4" sock temp 79-80, sg 1.026, NH3 0, NO2 0, NO3 <10, ph 8.2, calc 400, mag 1300

10/18/2015, 05:16 AM	#4
Ocean envy Registered Member Join Date: Oct 2011 Posts: 102	I wouldn't worry about it. It probably just slightly extended the time till the end of the cycle. No biggie.