Who Gives A Fish Forums

Thanks for the tips. Gonna grab a second heater and an Inkbird. Room temp stays around 72F, but the Fluval's swings are stressing my fish. Appreciate the specifics on wattage too.

I'm setting up a 75-gallon tank for Discus and need a reliable heater. Current temp fluctuates between 78-82F, which isn't ideal. What's your go-to heater for stability? Using a Fluval E300 now, but it's inconsistent.

My 60g seems okay for 5 Discus, but I'm new to this. They're about 4 inches now, and I do 25% water changes every 5 days. Using a Seachem Tidal filter, temp at 83F, and have some Java ferns. Not sure if I should upgrade soon. They're eating well but sometimes hide when I approach.


Hiding ...

A 55g is pushing it for 6 adults. They need space to establish territories and reduce stress. I'd recommend at least 75g, preferably 100g if you can swing it. My group of 8 thrives in a 120g with weekly 50% water changes, T5 lighting, and a mix of live plants like Amazon swords. Overcrowding leads ...

Re: Discus in Juwel rio 180

I've had experience with Discus in a Juwel Rio 180, started about 5 years ago. In my opinion, 4 is the maximum you can comfortably keep in this tank, but even then, I didn't see the desired growth rate.

Now, I've upgraded to a Rio 450 for my adult Discus, and I use the ...