Quick question on Canister.

[Tez_20]

My tanks gone a week now from finishing cycling and never using a canister before just wanted to ask a quick question please because the tanks backed up also with a Fluval U4 internal filter.

I cycled it with 6 guppies all healthy, i've added 8 harlequins in the week and yesterday tested water PH 7.8
Ammonia and nitrite 0
Nitrate 20
After testing knowing qualities was still stable, i took my 7 Albino's out my Roma and into my new tank, the next i want to remove are 4 Sterbai, 2 pandas and 1 bronze cory.

I was going to do it Wednesday but hubby said do it next week, just so the tank and canister keep stables.

When do you think it would be ok to move them if waters are fine on testing?

 

[Byron]

What is the tank volume, and do you have live plants (if yes, which species and how many)?

 

[Tez_20]

What is the tank volume, and do you have live plants (if yes, which species and how many)?

Byron thanks for replying much appreciated as i've always had top filters or internal filters.
The volume of the tank is 252 litres [66.5g] and there's no live plants but the U4 had good filtration moved over from my other and the canister media was soaked in my Roma 200 water for a good hour before going in to the canister.

My tank so you have a rough idea but ammonia/Nitrite levels keep coming in at 0 and Nitrate 20, it's fully cycled i just need a rough idea on when i should move my next lot of cory's without upsetting the finished cycle.

 

[Byron]

OK. I asked about plants because with live plants, and some that are fast-growers (like floating plants) you could add all the fish you wanted and never have ammonia (or nitrite) above zero. Relying on the nitrifying bacteria is a different story. But given your info, I would add the fish and monitor ammonia and nitrite. Water changes if either of these increase, but again from what you've said I wouldn't expect it. Nitrifying bacteria reproduce by binary division roughly every 30 hours (ammonia oxidizing bacteria are faster, around 20 hours, but the nitrite oxidizing bacteria take 32 hours).

 

[Tez_20]

OK. I asked about plants because with live plants, and some that are fast-growers (like floating plants) you could add all the fish you wanted and never have ammonia (or nitrite) above zero. Relying on the nitrifying bacteria is a different story. But given your info, I would add the fish and monitor ammonia and nitrite. Water changes if either of these increase, but again from what you've said I wouldn't expect it. Nitrifying bacteria reproduce by binary division roughly every 30 hours (ammonia oxidizing bacteria are faster, around 20 hours, but the nitrite oxidizing bacteria take 32 hours).

Thanks for helping me i was just concerned because of not having a canister before and i know my nitrate is stable at 20 on both tanks but every 2 days i keep doing the ammonia/nitrite to make double sure.
I'll check it in the morning and again wednesday and if all is fine i'll move those over and if it keeps stable do my 6 emeralds next weekend and that's the cory's done.

Cheers again Byron for taking the time to answer me