I have recently acquired a 75gal tank. It used to be a salt water tank so I gave it a thorough cleaning with vinegar and let it run, ect.
Currently it has 65 pounds of gravel and today I added three plants, 9 feeder guppies (all less than half an inch long), and four ghost shrimp to test and helps the tank's progress. I have observed them and they appear perfectly happy and love all the space.
The dilema? Two weeks ago two of my danios paired off and went rouge on the other fish. :K Their view of establishing a pecking order was killing a one-eyed danio and injuring the two oldest danios (one around 2 or 3 yrs old, the other 5+). The young one was fast so he only received some injury but the older one had his fins almost completely shredded. I returned the evil pair to the store and moved my injured one into a 1 gallon tank (the only one I could trust to be safe). Although I added a bubbler, heater, small fake plant, some rocks, and a handful of ammonia absorbing crystals, he HATES it. However, I can't add him to the 20 gallon until his fins are re-grown because in his weakened state the barbs pick on him. :K The question:
Should I add him and the other danios to the 75 gallon with the guppies tomorrow? (I was going to move them in a few more weeks to be safe but I'd hate to have him die of stress in that sorry excuse for a tank....)
My green tiger barb also looks like she is about to lay eggs and I really want these to hatch (by keeping them in the 1 gallon) to help balance my barb count. :K
I swear they did this on purpose to prove that I needed a hospital/quarantine/breeding tank. Butt heads should have waited a few more weeks to go crazy.