Well I didn't limit my comments to what was going on in this particular thread. I would say if someone said that pertaining to water conditioners that people that use prime are fish keepers that know what they are doing. As to suggest that anyone that doesn't use prime doesn't know what they are doing to me comes off a little arrogant. One of the members on here that I have learned a lot from doesn't use prime on his huge tank. I think it's around 600 gallons. I'm not sure how you figure telling someone never to give advice again is the best way to approach a disagreement. Like i said if someone feels you're attacking them they're gong to get defensive and be less likely to listen. If you really want to be a good member and want to share your knowledge to other members there is a far better way to approach that. All I was saying on the tank size that you make a big deal about it as if you know and that it could be possible that even you're wrong and certain fish might even need a bigger tank. I know that pertaining to science that in the past we as people have been told that some things are ok and right to in turn later on be told that they in fact aren't actually sufficient or good. Keeping that in mind I would just say that you should understand the information you're sharing could also be found to be inadequate. There will also always be people in the world that will always think you need a bigger tank for the particular fish you have. Take P.E.T.A. For example. I'm sure they think no size of tank would be sufficient to keep any fish and think we're inhumane for putting a fish in any size tank that limits their natural range. That's why I said it'd be easy to argue any sized tank would be too small. Just for the record I wouldn't keep a tsn or rtc in a 135 gallon tank. I know everyone is always going to justify the way they come off in some way such as they're passionate about fish keeping. I'm not the first person on here to say that there are people being rude, so keep that in mind.