I don`t like the larger tanks, so I waited for the Mini Pro Tank. Got it, plus also ordered Iclear 16. I think I like the Iclear better. The taste is better in it. I have to be honest...I have tried ALMOST all tanks and clearos out there. Most of them I haven`t liked-except the carto tanks and t4 clearo`s. I`d about decided I`d stick with the carto`s. In fact, I just stocked up on them. But with the Iclear 16, I may keep using the clearo`s. It took about 1 1/2 tankfulls in the Iclear to get the taste right. I`ve gone thru 2 tankfulls in the Protank, and it`s still not as good as the other. But then, that`s just my tastebuds.