Hi guys, I was wondering if this would cause my Silver Aro's back to bend like the ones in the stores that are in overcrowded tanks? It's strange, when it's feeding time, the Aro's are dominant and swim very strong through the current to grab a pellet. BUT, when they're swimming freely they'll sort of swim at the top, and then let there body float downwards with the filter so that there backs are bent. Will this cause a possible problem? I was thinking of a canister filter for this very problem, though I'm not 100% sure if this will be a good idea or not.