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Discussion Starter · #1 ·
So doing my weekly normal
Water change and opened up one of my canister filters, cleaned it all as normal in tank water and put everything back in, stupidly filled it back up with normal tap water that I thought I had added prime to but had not!!!!

Realising my mistake I added a dose of prime to the filter as it was just all sitting there and could not fire it back up until I had filled my tank back up.
I run an FX6 on this tank too which is my main filter so the 307 really is just for extra filtration but still holds about 1 kilo of matrix bio in it. When I was able to I started the filter up and then re opened it and dropped a load of live bacteria direct into the filter.

My question is have I killed the bacteria by adding the tap water or the measures that I have taken meant I’ve saved it?
Also I assume I’ll have no issues as my FX6 is more than man enough to run the tank alone as my tank is 500 litres and 5 foot.

both filters have been set up for a while and are mature.
Am I panicking unnecessarily.

thanks
 

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Discussion Starter · #3 ·
I have removed 3 fish from my tank and collecting 6 next week to add to my currently slightly understocked tank…you think this should still be ok? I can add more love bacteria direct into the filter when I add them just to help again. The FX6 is packed with about 2 kilos of bio home ultimate and then about 1 kilo of matrix.
 

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Discussion Starter · #4 ·
I could add in a very mature internal fluval U4 just incase which is good up to 250 litres when I add the new fish next week. Or……do u think I will be ok as I added the live bacteria and the FX6 is mature and good to run the tank by itself. I’m assuming by next week the bacteria would have colonised back in if I had list any, between the FX6 and the live bacteria I added surely I’d be ok. Panicking as I have paid for fish and collecting them on way back from a holiday. I leave tomorrow 🙈
 

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Discussion Starter · #6 ·
It’s live bacteria in little jelly balls from a company called evolution aqua….so live live bacteria. It’s not entirely true about the fish…so I removed 5 in total one that was injured, one that’s in the naughty tank and then I sold the other 3. All before today’s water change. I am then collecting 4 new fish and adding the injured but now recovered and naughty one back in together which will be Wednesday next week in the evening. So 4 out and 6 in.
 

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Discussion Starter · #7 ·
If you think to be safe I can add a mature U4 internal when I add the fish. Depends what u thinks best….your advice on here has always been good. I cannot monitor any ammonia spikes as I am away from tomorrow morning for the 3 days. I have someone coming in to feed my tanks but I would not ask her to test as she just does not do fish at all.
 

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Discussion Starter · #8 ·
Was thinking of adding more of the live bacteria jelly balls to the filter when I add the fish to help.
 

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Discussion Starter · #10 ·
Ok will do…..thank you for your help. And the fish now that are in……ok you think with the FX6 and what I did to rescue the 307 canister bacteria?
 

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Discussion Starter · #15 ·
So yes I have the second filter and this is FX6 the largest of the two and holding most of the bio media. I’m away right now and the person feeding them said they are ok and feeding….not that it’s the best indicator.
 

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Discussion Starter · #16 ·
So this leads onto the fact that I use a python for water changes, I drop in prime and treat the whole tank which I do just after water from my tap comes into the tank. This is how the instructions say to do it and many vids. Is this wrong?
 

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Discussion Starter · #18 ·
I’m only away until tomorrow so 2 days. I could have stopped feeding altogether. I measured out all the food and left it in pots. I put less in than normal so it’s controlled.
 

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Discussion Starter · #23 ·
Well everyone here is a turn up and what I hope is not a complete tank crash!!! So I came back and added my new fish. All seemed fine until I realised my FX6 (the other filter) and the one that carried most of my media was not running!!! How long it had not run for I have no idea at all. I checked everything and found a small stone in the impeller which I can only think meant my filter just shut down. I opened it and it smelt not great at all!! My ammonia had spiked and I immediately did about 80% water change. I added an existing U4 from my grow out tank and chucked in some live bacteria I had along with a new purigen pouch to my fluval 307. I dosed the tank with prime and I’m holding my fingers. I’ve just tested and the ammonia is now 0 nitrites 0 and low to trace nitrates. I’ll re test in the morning but does anyone have any idea how long bacteria can survive for in a stagnant canister? Is this bacteria now dead? And if so how long will it take to re establish with what now is two other seeded filters running.

what a nightmare to come home to!!! Any help or advice on what I should be doing would be helpful and very much appreciated. I don’t want my fish to die.

mall filters are now running ok.
 

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Discussion Starter · #26 ·
Can I get your advice please. Further to my FX6 shutting down for 48 hours and the fiasco of having to add my U4 I’ve had two ammonia spikes. Everything was fine until I fed them twice in one day as normal and the next morning my ammonia spikes to just under 1ppm. I then did a 25% water change and took it back to 0. 24 hours later another ammonia spike which was less but still at 0.5ppm so again I did a small water change which was today and again it’s back to 0. Nitrites are at 0 and my nitrates around 0.25. Last fed was yesterday and nothing given to them today.

what’s everyone’s advice here? Should I keep water changing as and when the ammonia spikes?
How often should I be feeding if at all?

fish all look ok, wanting food, swimming well, gills look fine.

I don’t want to lose any of these guys.

please advice
 

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Discussion Starter · #29 ·
Only some smaller ones from my grow out tank. But the ones I could remove are only really good up to maybe 60-100 litres….very small.

So don’t feed at all?
 

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Discussion Starter · #30 ·
The fluval U4 internal I have added is the largest established filter I have. Plus there’s a fluval 307 which is established too.
 

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Discussion Starter · #33 ·
Also if I have readings of 0 ammonia and 0 nitrites how long from then shall I fed them? Not at all or fed them but if it spikes after then what do a water change? Or should I wait for a few days of 0 readings if I’m making sense.

thank you DJ
 

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Discussion Starter · #34 ·
Last tests of the day as it’s 11pm here.

0 ammonia
0 nitrites
5-10 nitrates

nitrates have gone up since last tests so there is a cycle going on.

if the readings are similar tomorrow morning shall I fed them as the ammonia would be under 0 or wait longer?

thank you and sorry for so many questions
 
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