I've got a new tank which I'm cycling, and I see I'm getting close to the end. I dose to 2ppm of ammonia every night, and it's gone the next day. The nitrite test is now after a few days starting to go back as well I added some rocks, plants and a little bit of gravel from my old tank, so it was relatively quick. It's a 300 liter tank (about 80 g), and the filter processes 1200 liters an hour according to the manufacturer. Now I'm wondering how much to stock to begin with. I don't want to starve my cultivated bacteria, but at the same time I don't want a spike which can torture and kill everything. I've never had a tank of this size before. I'd like to add a school of head and tail light tetras, or if they don't have them I'll add some cardinals. Then a bristlenose pleco to deal with the algae. And a couple of angelfish, but that's further down the line when things have stabilized some more is what I'm thinking. Will a school of tetras be enough to keep things going? And how big would it in that case have to be? Perhaps I could get two schools of different tetras? I plan to add two different groups of schooling fish to the tank. Should I get the pleco right away? I found a guy who breeds them, so he has some young ones to sell. But it might then be a little bit too fragile for a new tank?