hi everyone I’m new to the hobby so I’m still figuring things out and I hope y’all could help me. I currently have a 75 gallon tank with an emperor Marineland filter. I have a green terror and a tiger Oscar both fairly small 4” each, and two plecos. I’m just wondering if I could add more to the tank was thinking clown loach / silver dollars but I don’t thing they will be compatible so I want to get your opinion. If you guys have another type of fish that will be compatible or if I should just leave it as that feel free to let me know. Thanks everyone