Who Gives A Fish Forums

Bacterial blooms are common with high bioload. What's your nitrate level? If it's above 20ppm, you're overfeeding or under-filtering. Test your tap water too, sometimes it's got silicates or phosphates fueling the cloudiness. A UV sterilizer can help if it's persistent.

Thanks for the input, everyone. I do 50% water changes twice a week, and they're eating like crazy. No aggression yet, but I'll monitor closely. Might rehome a couple if I see issues.

I've got a 75-gallon tank with 8 adult Discus, a school of 12 Cardinal Tetras, and 6 Corydoras. The fish seem active, but I'm worried about space. Water params are stable, 0 ammonia, 0 nitrite, 5 nitrate, pH 6.8. Temp's at 84°F with a Fluval FX6 running. Anyone think this is pushing it?

Thanks for the advice, everyone. I'll try adding more plants and maybe another Discus. Appreciate the help.

I've got a group of 5 Discus in a 75-gallon tank, and one of them is constantly chasing the others. Water params are good, 0 ammonia, 0 nitrite, 10 nitrate, pH 6.8. Temp is steady at 84°F with a Fluval heater. They're fed twice a day with a mix of frozen bloodworms and Hikari pellets. Anyone else ...

Yo, my Discus hated the FX4's flow too. I slapped a pre-filter on the intake and cranked the output down. Now they vibe near the driftwood. Also, try feeding near the calm spots—they'll learn where to chill.


Pre-filters are clutch. They also reduce intake suction, which can stress fish. What's ...

Optimal flow is key. Aim for 3-5x tank volume turnover per hour. For a 75g, that's 225-375gph. The FX4 pushes 700gph, so throttle it back with the valve or add pre-filter sponges. Also, check your CO2 levels if planted—high CO2 plus high flow stresses them.

I just spent a lovely time planting the plants in my aquarium. Initially, I was hesitant about having real plants - the thought of maintaining them didn't exactly thrill me. My experience with aquariums started when I was younger, and I had what I now know is Anacharis Elodia. I'd just toss it in ...

I'm curious, how long has the elegance been in your tank. The behavior you're describing seems like it could be a sign of stress, I've seen it before in a dying elegance, hopefully that's not the case here.

Re: How long have you been without power?

I've got a setup that's been a lifesaver during outages - a Power Inverter under my Power Chair's seat, connected to the gel cell batteries that keep me moving. It's primarily for running an airpump, but I've also found it super handy for powering a light ...