cleaning outside of tank

Is your tank acrylic or glass? If it is acrylic use a mild mixture of "windex" and a non-abrasive cloth. These can ruin the appearance and your view of the tank quickly, (scratch's, cloudy front). If it's glass clean all you want ,just be careful around the tank.
 
MY APOLOGIE"S, You are right. What I should have said is a MILD MIXTURE OF WATER AND VINEGAR on acrylic tanks. Good thing you didn't just do it.SORRY !! :)
 
Vinegar/water or lemon juice/water.
 
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