adding fish to soon

Hello Everyone! I was wondering if someone could push me in the right direction. I currently setup a new display tank and paired it with an established Refugium form my previous tank. It’s had been running for 2 days, I tested levels and I have Ph is 7.8, Ammonia is 0ppm Nitrite is 0 ppm and...

This is a long story so bare with me. I originally owned a small square tank with two equally small fish a minnow and a small orange no longer than 2 inches. I’d had them for about a year and the other day I noticed one had disappeared, this is when I saw that the minnow was dead under the...

I added 3 Sterbai Cory to my 65 gallon Thursday. Is it to soon to add 4 more Sterbais to the tank Sunday 3 days later?