If it is sitting too deep, there will be too much water in the body. You would need a riser to adjust the height.I prefer (and some would say I am biased) plexi bases. Better flow under the skimmer, and way sturdier than eggcrate. Either way, you will need to elevate it to get it sitting right.Having said that, it is possible that it is going through its break in period. Which would cause them to be wonky.
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