It's been awhile since I have had an Oscar; but the couple I had were about as easy as they could be. The biggest problem is having the space for them. They were tough as nails and would eat pretty much anything I gave them. Never tried them with plants though.
I haven't tried the fry food yet and I've never tried rams. I have had good luck with golden pearls and rainbowfish. Golden pearls is basically a powder.
Well @Brandyhas inspired me. Had an empty tank that's been cycling. Now there are 4 juvenile EBAs residing in there. Hopefully there is a good male/female split in there.
Cory may have a better answer than me; but, I would determine what fish I’m thinking of putting there. I would match their ideal temperature and let your plants adjust to that. It seems to me it would be harder on the plants to keep dealing with temp swings.
As long as they’re eating, you’re probably good. If they stop eating, you may have other problems. Make sure they have hiding spots, it can actually make them more comfortable and come out more.
I use 10 of them. Haven’t had any problems. They are all running coop sponge filters. They have enough air to run those with no problem and they are nearly silent (my favorite part).
Could a ziss egg tumbler be used to tumble angel eggs? Obviously seen it used for cichlids, corys, etc. Is it too much for angels. Curious why I never see an egg tumbler used for them?