i would like to add inverts to my tank(30 gallon rectangle)in the future. my conserns are finding ones that are community safe and wont climb out via my heater or tall plants. any recommendation on which ones to reasearch would greatly help me as im a noob. O:;batman my perameters are all good but ph 7.4 is a tad high but i dont mess with it. tank fully cycled. 5 cherry barbs.