You could try this thing Capt Gorilla taught me, buy a sponge filter insert and fit it around the syphon of your HOB
, that way you will still get movement and your babies wont die.
If youre talking about an UGF
then you can just put an airstone on the corner of the tank so you still get some O2
in your H2O.
The thing is: your bacteria need oxigen, and if you let time pass without feeding it (NH3
, and NO3
PLUS OXIGEN) your cycling bacteria will die and you will hafta kinda start all over again...
Thats what i know...
Is your tank planted?
Maybe if you gave us some more info about your filtration equipment and tank setup we could give you more solutions to your problem.