i said start out with 30, maybe end up with 20. there's no reason people can't thin things out if they feel like things are overcrowded, but IMO, that 20 gallons per fish rule really only applies if you are talking about a tank with a smaller footprint than 72 x 18. i think 10-12 is a good number for a 125, so 20 for a 200 isn't out of the question.Ohio Entusiast;3588113; said:One question.
Have you ever seen 30 full-grown Natts. together in the same tank?
you could definitely buy more than 20 and see how things go... personally, i think 20 in a 200 gallon tank is just fine, but if you feel like things are getting too crowded as they get bigger, take a few out.Neervana;3588170; said:well my partner is saying he can get me 20 or more - like however much i want. i just really need to know how many i can put in there. then i need to know what filtration i need to match that