When To Buy 2nd Group Of Tropical Fish?

[Dunkal]

Hi,
I added 7 x ray tetras to my tank yesterday(tank fully cycled). My question is should I buy 2nd group of fish next week or should I leave it for a few more weeks. I have a 70 litre juewl tank with internal filter and was wanting to get 3 cherry barbs and 4 corys, whould this be overstocking??
Thanks
Karl

 

[SJ2K]

Keep an eye on the water stats for a week, if its all good then add up to 7 more fish Dont add more then 2x the ammount of fish and you should be ok. After each addition pay special attention to your stats and water change if you see ammonia or nitrite.

7 tetra, 3 barbs and 4 cories shouldnt be over stocked.

 

[Dunkal]

So, You think I should add 2 fish per week if all stats are all ok??

 

[SJ2K]

You can double the ammount of fish you have each time as beneficial bacteria can double in numbers within 24hrs. So you can add more then 2 at a time