Three would be fine. I housed 3 for many years in a 75 and they did just fine. I am a little weird when it comes to numbers. I feel like you should always house an odd number. At least thats wheat I always thought. I did water changes every week. I now have 13 in a 220 which imo is way over crowded. They are still small so no biggie but they are growing very fast. I love my Rbs.
Go with 3 if your not planning on getting a 125. If you think it is an 90% probablility that you will get the 125 I would go for 5.
Go with 3 if your not planning on getting a 125. If you think it is an 90% probablility that you will get the 125 I would go for 5.