Who Gives A Fish Forums

Thanks for all the tips, everyone. Gonna try mysis first and see how it goes. Appreciate the help!

Just picked up a Blastomussa wellsi frag, but I'm not sure what to feed it. My tank's a 40-gallon mixed reef with T5 lighting, nitrates around 5 ppm, and I dose amino acids weekly. What's worked for y'all?

API Freshwater Master Kit is solid. Used it for years with my 120-gallon planted tank, Discus are thriving. It's accurate and easy to read, just follow the instructions. Also, if nitrates are hitting 20ppm, maybe up your water changes to twice a week, that's what I do.

Yep, flow's a biggie. Also, how old's your water? Mine did circles when I slacked on changes. Now doing 50% weekly with RO mix, they're chill.

The Fluval 407 can be pretty powerful for Discus. I'd recommend reducing the flow rate to about 50%, they prefer calm water. Also, try adding a spray bar to distribute the flow more evenly. What's your substrate? Sand helps buffer the current too.


Spot on. I've got the same setup, and adding a ...

Thanks for the advice, everyone. I'll try spreading the food and maybe cut back on the beef heart. Appreciate the tips!

My discus get super aggressive when I feed them, especially with beef heart. They chase each other around the tank and nip fins. Tank is 75 gallons, 6 discus, 2 angelfish, sand substrate, planted with Amazon swords. Water params are good, 0 ammonia, 0 nitrite, 10 nitrate. Temp at 84F, weekly 50 ...

Rotten egg smell usually means hydrogen sulfide buildup in the substrate. Sand can trap debris and create anaerobic pockets. Try stirring the sand gently during water changes and maybe cut back on the beef heart, it's messy. Also, check if your filter flow is strong enough to circulate the whole ...

Good call on the temp. Also, keep an eye on their behavior after the changes. Subtle shifts can tell you a lot about what's working.

My discus have been in the same tank for months, but they just won't pair up. Water params are good, 0 ammonia, 0 nitrite, nitrate around 10 ppm. Tank is 75 gallons, temp at 84°F, with a canister filter and sand substrate. They're about 5 inches each, fed twice daily with a mix of flakes, pellets ...