maybe a little in the Penguin, none in the 110's, but I need to check the FX5 yetCheck your filters thoroughly for organic waste build up.
maybe a little in the Penguin, none in the 110's, but I need to check the FX5 yetCheck your filters thoroughly for organic waste build up.
I only do 1 50% change a week (except this week), which is what I always do. I will try adding some BB solution, but this tank has been set up for a while now and I haven't added much of anything and what I did add, they killed off a couple weeks ago. BB are not really in the water column. I don't pull out any decor and clean it.I think from all of your water changes. With ammonia present, you've stripped alot of your nitrifying bacteria. Ive lost intermedia in the past. There a s.o.b when small. My 3 now with 2 rio negro orinos are doing great at 6". But ive lost 5 in a day IME at 2-3". Their tough to ship. Stress easily. More prone to ich than any other cichla ive owned. My pbass get fd krill once a day. No need to power feed. Their gonna go through growth spurts anyways then just stop. But id cut down on your meds b4 you make the water toxic. And add live nitrifying bacteria.

I left it bare bottom so it would be easier to clean being a growout tank, but that is certainly the trade-off. I will probably put some in when I move the tank here this week sometime. I am also going to move the biggest one into the 240. I have some room in one of the AC110's, so I will put more bio-media in there. I could probably switch some of the foam out for bio in the Penguin, too.Ammonia and nitrate in the tank means not enough media or inadequate filtration. Since your tank is bare bottom you don’t have much surface area for BB to live on inside the tank. That means your filters need to be extra efficient to make up for it. Your bio load doesn’t seem to large at this time as your fish are still small, but I would probably bet that you don’t have enough media or not enough turnover of the tank per hour. Your water change schedule of 50 percent per week should be fine at the size of your fish currently are. The goal should be to keep nitrate under 20ppm and judging from the 5 ppm reading your doing good in that regard. Lighten up on the food your putting into the aquarium and add more media to your filters until the ammonia is gone. You can use a double dose of prime every other day to detoxify the ammonia that is in your water until the filters can catchup to your bio load. Be sure to test your parameters daily until your out of the woods on this one. The four bar fish looks like Cichla pleizona. View attachment 1395156