Originally Posted by memorygirl
Yes, I understand that I'm just seeding the tank so to speak. The directions say to continue to add the Stability for 7 days and I will do that in addition to water changes. Do you see any benefit in continuing beyond the 7 days? I was wondering if stopping would somehow create an imbalance with all the partial water changes? Or am I over thinking this?
Also, the LFS recommended adding additional fish in about 2 weeks (3 small angels). Would you agree with the timing?
Thanks again :)
You're very welcome.
I see no reason to continue Stability beyond 7 days, but if you still have some left, might as well. This is live bacteria and thus it has a shelf life, and once opened should be used. But beyond that, I would not buy more once the initial period is up.
Water changes have no direct effect on bacteria. All bacteria adhere to surfaces in what is termed a biofilm. Some bacteria are naturally "sticky" and some use various methods and chemical/biological processes to attach themselves, but the end result is that they stick on surfaces. They are not easy to remove, by which I mean that rinsing filter media or similar will not dislodge them. [Rinse in tank water or dechlorinated water, as tap water will kill them with the chlorine.]
Some aquarists advocate that water changes slows the establishment of bacteria because it removes ammonia and nitrites. While it is certainly true that ammonia and nitrite are being removed--otherwise why do the water change
--the fish are being spared toxic poisoning which even at very low levels does affect them and weaken them. Plus it is debatable just how much this might delay the multiplication of bacteria. Keeping the fish healthier is preferable to short-cuts that won't.
On adding fish in general, once you are obtaining zero for both ammonia and nitrite for consecutive days, more fish (few) can go in.
On the angelfish, I would not go down this road. With no other fish in a 46g tank, a group of angelfish could work. But you mention already having two rainbowfish, and both these species need a group. One is in our profiles, the Dwarf Neon Rainbowfish [I assume this is the species] so you can click the shaded name to see the profile information. The other species, Celebes Rainbowfish, is not in the profiles so here is some reliable information on this one, which also mentions a group of 6-8 but preferably more. My advice would be to up the shoals of these two fish, assuming you like them, so they will be at their best. Celebes Rainbowfish (Marosatherina ladigesi) - Seriously Fish