my tank is cycled

[Warr40]

My tank is cycle do i do a water change???
How big???

 

[inflexion]

how big is your tank firstly?

i think i did a 40% change when mine was ready

 

[WILDER]

Will need to no how many gallons don' want to do to much of a water change on a small tank, end up cycling again.

 

[Warr40]

29g

 

[WILDER]

It usually a 40% one if you did a fishless cycle, if not just a 20% water change and gravel vac.