Can I add 9 fish at once?
I know there is a general rule to adding no more than 3 fish at once (per week), but are there exceptions? I want to have a total of either 7 or 9 Rummynose Tetras in my tank. Does that mean I have to add 3 each week for 3 weeks if I wanted 9? Or could I add them all at once? Thanks! :)
Is your tank heavily planted?
I added 8 rummynose to my heavily planted tank and I didnt lose 1 of them. I think as long as your tank has enough plants to assimilate the ammonia from these fish, you should be fine.
If your still using the 29g my worry would be that you are adding alot of bio load (fish waste and co2) at once. This could drastically affect your water parameters. It can be done but you will need to monitor your water very close, and may need to do daily water changes for a week or so until things balance out.
An ammonia spike shortly after adding new fish could really be bad for them.
Most of these "general rules" are best forgotten. I've not heard this one before. But the biology of each aquarium is different, and this is solely what determines this.
Live plants would as Jbrofish8 mentioned eliminate any issues with adding fish (within reason, i.e., not overloading the tank's limit). Without live plants, the next question is how long the tank has been running; a new tank will have minimal nitrifying bacteria, whereas an established tank has a more mature and established biological system that can absorb more without detriment. Third, your pH has a role in this; in acidic water there will be no ammonia issues.
In your case, I would add the rummys at once. Monitor the ammonia, be prepared to do a 50% water change. Using a conditioner that detoxifies ammonia and nitrite in such situations is also beneficial. Prime and Ultimate do both.
With the mentioned fish, live plants should be considered. Even something as simple as floating plants will make quite a difference to the water quality, and perhaps equally importantly, the fish. These forest fish always are more relaxed with a "roof" over them.
Plus 1 on the above mentioned.
The only problem I see with adding that many fish is that if you would have a bunch of different species, but of if they are the same species of fish then there hierarchy has already been worked out in the tank you have gotten them from.
I'm not a big fan on the smaller aquariums; I'm willing to leave the smaller aquariums to the more experienced hobbyist. The equalibrium changes to fast and one would have to pay much, much, closer attention to your pet fish.
If I read correctly, you want 14 fish in your 29 gallon aquarium. You have grossly overstocked your aquarium.
I'm quite aware of the overstocking rules for fish, that is not my question. I also just added some more Cory's today after posting this thread, so I will not be adding 9 Rummy Noses. I am now thinking about 5. Now the issue is if that is enough Rummys (they like bigger groups).
I think you need at least 8 or 9. They do better in larger groups. You should be fine to get that many even with the extra corys since they occupy different areas of the tank.
I think Byron brings up a good point though. Is this tank cycled and how long has it been set up? Id pick up some floating plants if I were you. They're super easy to grow and the effect it will have on the rummys is so worth it.
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O.k. if you don't mind water changes every other day, then yea 14-15 fish is fine. That many fish belong in at least a 50 gallon tank.
That mistake has already been made by me, first it was a 10 gallon, then I thought 20 gallon tank for like 10 fish was good. Nope. To keep the fish alive until I got the 50 gallon tank, I had to do water change every other day, b/c my fish were constantly crapping every where.
Yea, grossly is still the correct word for 15 fish in a 29 gallon tank. I'm just thinking about the fish.
P.s. My Molly's were supposed to grow only 2 inches, they are now 2 1/2 inches and growing.
I have 20 fish in my 29g and all is just fine. And I plan on adding 3 more soon.
I change my water once a week and my ammonia and nitrite never move above 0.
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