Who Gives A Fish Forums

Thanks for all the advice, everyone. I'll try increasing feedings and adding microworms. My fry are about 3 weeks old, tank is 40-gallon, temp at 86°F, with a canister filter. Water changes 50% daily. Appreciate the help!

guyah wrote: ↑Sat May 03, 2025 11:43 pm How's the temp? Sometimes bumping it to 86°F helps 'em recover faster. Just don't go higher—Discus can't take it.

Yep, and add some salt if they're still stressed. 1 tbsp per 5 gallons for a few days. Works wonders.

Glad they're improving! Try offering live blackworms if they're refusing pellets. Mine go nuts for 'em after stress. Also, dim the lights for a bit—helps 'em chill.

fail_safe_1 wrote: ↑Sat May 03, 2025 10:05 am Thanks for the advice, everyone. I'll try moving it to a higher flow area first and check my alk. Nitrates are at 5 ppm, so not too low.

Good call. Let us know how it goes. Sometimes it's just trial and error with these guys.

I'd try moving it first. Torches can be aggressive, and trimming might stress it out. What's the flow like in your tank? High flow can sometimes reduce how far their sweepers reach.

Mine did this after I added new tankmates. Could be a dominance thing if you've got other fish bothering them. What's the stocking like in there? Also, any recent changes to the tank decor or equipment?

Good call, Foldo. Just remember to rinse the media in tank water during changes, not tap. Chlorine'll wreck your bacteria. My Discus started coloring up nicely after I switched to that routine.


Yep, learned that the hard way. Lost half my bacteria colony once by rinsing under the sink. Never ...

I've had good luck with the Eheim Classic 600. It's quiet, reliable, and the flow isn't too strong for Discus. I use it on my 75 gallon with a sponge pre-filter to catch debris before it hits the canister. Tank's got driftwood, java fern, and a group of 6 Discus. Water changes every 5 days, 30%.

dungeon wrote: ↑Wed Jun 14, 2023 2:46 am Hi, just a thought - are you adding any fertilizers to the tank?

I hadn't planned on dosing ferts, since I assumed the fish waste would provide enough nutrients.

How long has that disintegrating plant been in your tank, and have you noticed any changes in the tank's conditions since you added it?


About 8 days now, I picked it up from my LFS, it was the healthiest one they had. I'm pretty sure it's an anubias, came pre-rooted to a coconut husk hide which ...