Hi
T
Tnballgirl
- welcome to mfk. Happy to have you here with us.
a couple quick things that I would like to address that I’m not sure if we’re already addressed
you said your heater was going on intermittently. That should be normal. Tank heaters typically have a thermostat in them and they shut off when they reach temp according to that heaters calibration. The best heaters are fully submersible, this way you can put them horizontally in a tank to avoid them turning on and off so much because of the internal thermostat shutting it off when the warm water rises to where the thermostat is. Another little gadget you could pick up is an inkbird controller which has a separate thermostat and will add another layer of protection to a heater being stuck in the on position. It has its own separate probe that reads the temp that you can place on the opiate side of the tank to ensure the heat is regulated better.
piranhas are typically quite shy until they are almost fully adult size/age. So they would be quite skittish and hide lots. It is good for them if you have hiding spots, not so much for you wanting to see them ?.
it’s good that you are putting together the 70 g. They will act differently once they have more room.
I’m not sure if you have them in the 70 or not yet, but you mentioned bacteria growing in it. The nitrite cycle doesn’t start unless there is an ammonia source, I can’t remember if you had been versed with this yet or not. A good start of the new tank is that once the smaller filters have bb established them you can transfer that seasoned media over and you don’t have to start over again.
great job so far. You seem to have the right attitude.
ps. The fluval canisters you are mentioning here have leaking issues that are caused from faulty o-rings. They can get gunk caught in them or even break and cause leaks. I had this happen to my 70g (now) piranha tank. The 07 series that you are talking about are a newer more improved-version that they may have fixed these issues on. If I were in your position about to choose which one to use- would pay a bit more and get the fx4 personally knowing what I know now. But if you do get the 307 it should work fine.