09-07-2011, 02:41 PM
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Originally Posted by Byron
That is usually the norm in stores that still have individually-filtered tanks [as opposed to all the tanks being interconnected so the water flows from tank to tank and underneath the tanks through a filter]. In the situation where you have more fish in each tank than would work long-term with consequently more waste, a UG pulls stuff down into the gravel faster. So the tank water is clear, very clear considering the fish load. I would suspect they do weekly water changes and really vacuum the gravel; I have a local store that does this, the tanks are spotless and have fairly thick gravel beds. I prefer this system, and it isolates fish and water to each tank.
Yep, I'm a 'fan' of the conventional UGF having used them successfully over the last 40+ years