Now according to the "gallon per inch of fish" rule, I'd definitely be overstocked, however, I heard that rule is outdated. So what do you guys think? Overstocked or not? And please, don't be shy to suggest your own ideas!
Looking forward to hearing your replies!
The gallon per fish rule is inaccurate for a few reasons. #1 is, we know water quality
is what matters, not the volume per fish. You could set up a 40 gallon tank for a few CP danios and they could still die from terrible water quality if you're not keeping up on it. Similarly, you can overstock an established, planted tank over time (key words - established, planted). I've read up on some of the experiments with koi and goldfish in water that is continuously purified water and it's true, the limits we thought were rigid are not, again assuming the water quality is kept pristine. I've also done it myself with well established, heavily planted tanks.
I would not overstock a newly cycled tank. I would slowly introduce your planned species staggered over 3-6 months, adding more plants along the way and see how you do with water changes. It's easy to say you'll stay on top of them when this is a hypothetical. In real life we get busy or stressed or lazy and maybe we don't always stay on top of things so you want to adjust for that and let the plants grow in so that missing the odd water change isn't going to cause problems.
I would add the otocinclus last - they really need a decently established tank with plenty of algae and biofilm to eat and it takes a few months after cycling to get there in most cases (especially if you add the amanos early on).
Just curious I recently got 4 CPDs (gonna get more when they are in stock). They hang out in the upper middle area above some plants pretty much all the time. They dont generally hide out or anything unless one of my juliis does there mad scramble and freaks everyone out.
I also added some ember tetras (6) today and the CPDs were kind of schooling with them a bit, plus one of the CPDs was playing a little tag with one of them. The CPDs are young just under half an inch.
Do CPDs usually hide all the time? Curious if Ive just got odd balls or something.
It depends on what other fish they're kept with and how much cover they have in my experience. I don't find them to be shy at all even in small numbers if they aren't kept with fish that are interested in eating them. If they are kept with potential predators I only see them around feeding time. I have been surprised to see their reputation for being shy and hiding all the time on the internet because as long as I'm keeping them with other peaceful fish they're pretty gregarious.