Just set up a new biocube 14 gallon for my daughter...everything is running great..but with my stick on temperature gauge it reads 74 degress...I have not introduced fish yet...am waiting a couple of days...is the temperature gauge that you stick on the side of tank accurate..is this too cold..I am going to put non aggressive smaller fish to tank..Does the biocube have a heat system...sorry for all the questions..maybe someone can help.....dont want my five year old to end up with a bunch of dead fish...its a birthday present for her.