For a thermometer I like the ones that suction to the inside of the tank. They seem to be more accurate and are easier to read than the floaty kind which is always at the furthest corner with it's back to me.
My big heater is a visi-therm and I'm not sure what the smaller one is. When I bought them, I just bought the cheapest submersible that allowed me to set the temp. (rather than a hi-lo temp or just turning it up and/or down until the tank is the correct temp).
btw the aquasafe and the easybalance are not the same product. Aquasafe only conditions, it doesn't alter your parameters like easybalance claims to, other than neutralizing some ammonia I think. The thing I would worry about with easybalance is if it messes with the ph, making it fluctuate from time to time.
My big heater is a visi-therm and I'm not sure what the smaller one is. When I bought them, I just bought the cheapest submersible that allowed me to set the temp. (rather than a hi-lo temp or just turning it up and/or down until the tank is the correct temp).
btw the aquasafe and the easybalance are not the same product. Aquasafe only conditions, it doesn't alter your parameters like easybalance claims to, other than neutralizing some ammonia I think. The thing I would worry about with easybalance is if it messes with the ph, making it fluctuate from time to time.