Adding Tetras

[digsy]

I have a 30 gallon tank with a dwarf gourami.

I'd like to add a shoal of 10-11 cardinal tetras. Should I add them all at once or is that too much bioload at once ?


Thanks

 

[b.c.f.c]

id add them in 2 groups of 5 or 6 then another 5 or 6 but thats only my opinion and the way id go .

 

[samyboy]

i added 10 at once with no problems, i would go with the above though if its a new setup and theres only one inhabitant so far

 

[Tokis-Phoenix]

How long has the tank been set up? Cardinal tetras are very sensitive to nitrites, ammonia and nitrates, they are not really advised for tanks under 6months maturity due to their sensitivity to such things.
If you tank is mature enough for them, i would add 5 at a time with two weeks space inbetween stocking each group .