A Quick Question

[poohbear1]

my kribs fry are big enough to go into my main tank till I find homes for them.
My question is if I put the filter from my small tank into my big tank without plugging it in will the bacteria still grow on the filter sponge so I always have a filter ready if I need a hospital tank.
Thanks
poohbear1

 

[OldMan47]

The bacteria need good water circulation to grow. It would be best to actually use the sponge filter in the main tank to keep it cycled.

 

[poohbear1]

The bacteria need good water circulation to grow. It would be best to actually use the sponge filter in the main tank to keep it cycled.

I was going to put it where the water from my main filter flows back into the tank.
I am trying to save electricity cause my bill has went up £40 a month this winter which is why I was going to move it into my main tank instead of moving some fish into my small tank to keep it going

 

[Miss Wiggle]

yeah sounds like it might work, bit hit and miss but with good flow around it you should maintain *some* bacteria on it.

i wouldn't trust it to then support a full tank load of fish but you may be able to support one or two in a hospital tank.