No, water changes can't be eliminated, a high turnover ratio would help you out to minimize the ammonia and the solid particles of waste floating all over inside your tank.
To be honest i havet tasted for that, I just have done ammonia tastes and I have very low ammonia readings.
In a properly balanced system you should never get any type of ammonia reading, other than 0.0
In a properly balanced system you should never get any type of ammonia reading, other than 0.0
I think u should upgrade to a bigger tank ....55 is just not big enough for two full grown males....it may sound crazy but u might be able to put both of them in a 180+ add some target fish and no dividers....jmo....or def start putting money aside for another 55