Who Gives A Fish Forums

How often do you clean the tank glass? Algae films can make water look murky. A magnetic scraper twice a week helps. Also, if you're using carbon in the filter, replace it monthly, it stops working after that.

I've used both sponge and hang-on-back filters. Sponge is quieter and easier, but the hang-on-back does a better job if you have plants or debris. Depends on your setup.

The Tetras and Corys aren't the issue, but 8 adult Discus is a lot for 75 gallons. They'll grow more, and space will shrink. Consider upgrading or reducing stock before it's a problem.

kayden wrote: ↑Sat May 31, 2025 6:42 am Sand seems to be the consensus here. I'll probably go with that. Any tips on how deep to layer it?

Keep it around 1-2 inches. Any deeper, and you risk anaerobic bacteria buildup. I use a thin layer in my 75-gallon, and it's perfect for sifting.

Yep, subway's spot on. RO water's sketchy for Discus unless you remineralize. I run a mix of 70% RO and 30% tap to keep things chill. Also, check your filter media. If it's packed with bio balls or ceramic rings, they can acidify over time. Swap some out for fresh ones or add a bag of crushed ...

Just watch out if you're using CO2. Some plants might outcompete others, and angels can be sensitive to sudden CO2 changes.

If you're gonna plant, make sure your substrate is deep enough for roots. Amazon Swords need at least 3 inches. Also, angels prefer slightly acidic water, so keep that in mind with your plant choices.

Yo, you gotta bump up the feeding frequency. Fry need to eat like 5-6 times a day, small amounts. Try adding some microworms or vinegar eels to the mix. They're tiny and packed with nutrients. Also, check your water params, 0 ammonia, 0 nitrite, nitrate under 10ppm.


Yep, microworms are a game ...

I've heard Anubias can yellow if they're not getting enough CO2. Even with Excel, it might not be enough. Have you considered a CO2 system? It's a bit of an investment, but it could help.

UV's overkill unless you've got algae or disease issues. I'd focus on the basics first. How's your filter media setup? I run sponges and bio rings in my canister. Also, what's your lighting schedule? Mine's on for 8 hours, seems to keep the plants happy without stressing the fish.