Great, I'm glad to hear it's going well I've actually had good luck with other Tetra products but not those darn heaters. Same as you though, they are all I can really find locally that's small enough so I ended up with a few. Sounds like the temp should be OK, especially with the summer months ahead. They'll let you know if they aren't warm enough. Betta will usually clamp her dorsal fin and frogs will hang by the heater and filter excessively