I originally had a minibow 2.5 but upgraded to an eclipse 6 for the following reasons. The minibow has dim and hot incandescent lighting. This can be upgraded to fluorescent with a CFL bulb. However you will notice that the light and filter are configured in such a way that 50% of the bulb overlies the filter, creating a tremendous algae problem.
Additionally my brother has an eclipse six in which his water parameters are always perfect. I was constantly battling ammonia and having to do water changes. This is probably due to the increased size and the (even proportinally) much greater filtration in the eclipse. Neither of our bettas has had trouble with the filter current.
The only disadvantage of the eclipse is the useless "feeding door". You will have to lift the whole hood off to feed if you do not want food getting in your filter.
Go with the larger and better designed eclipse six over the minibows. You will be happier in the long run. Also the price difference is largely negated when you consider the price of the CFL upgrade bulb which you will almost certainly want. Then factor in the cost of the amquel or stress coat you will be buying when you have to do every other day water changes!
Last edited by lowspeedhighdrag; 01-06-2010 at 11:12 PM.