Will my tank be habitable for a retic ray? URGENT

[Mihajlo525]

Hey guys, sadly just about 1.5 months ago my 5" wide retic ray died in my 120 gallon, I asked and asked on MFK and the closest thing we could come up with was ammonia poisoning. This was 9 days after I got a 7" Kelberi Peacock bass and right when he started eating. So anyways my stock at the time was a 13" oscar, three 6-7" goldfish, 7" kelberi peacock bass, a 11" brown bullhead catfish, a 12" pleco, and the 5" wide retic ray the day he died. Since then I got rid of 5 fish, all three of the goldfish, the bullhead, and the retic ray that died. I also added two sponge filters and a 300gph powerhead to oxygenate the water more. I also just today replaced the rest of the gravel with sand, half the tank was gravel and the other half sand.
ALSO FYI THE RAY WAS DOING PERFECTLY FINE THE SAME DAY HE DIED infact below is a video of him eating from my hand THE DAY BEFORE HE DIED.

So here's my 120 gallon tank in its current position, A 13" oscar, a 8" Kelberi peacock bass, and a 12" pleco. The filtration is a fluval 406 canister, two tetra EX70 HOB filters (all three adding up to 1083GPH), two sponge filters, and a 300GPH powerhead to add extra aeration to the water. I also plan to get a fluval FX5 or FX6 sooner or later and only then will I plan on getting the ray. The particular kind I'm getting only achieves the disc length of 12" wide maximum for males and 15" max for females. All I want to know is will my tank be suitable for a retic ray when I get the FX5 or FX6??? Thanks for reading!
[video=youtube;3KrgnSbntYs]https://www.youtube.com/watch?v=3KrgnSbntYs[/video]
THE TANK LOOKS SMALL IN THE VID BECAUSE OF THE ANGLE IT WAS SHOT AT, IT'S ACTUALLY 1.5' WIDE

 

[festaedan]

Yah, it should
Just make sure the ray is getting enough food. Just dropping in some blackworms wont work well with an oscar and kelberi quickly trying to gobble it up. My rays will actually swim up to the top of the water and try to steel my bass's food. Unless your ray is bigger than your other fish -and assuming the ray will be 4-5"- that shouldnt be a problem. Also, frequently check the water. When you have allot of messy fish in a tank that small, amonia can build up fast. I learned that the hard way.
Good luck

 

[Mihajlo525]

Yah, it should
Just make sure the ray is getting enough food. Just dropping in some blackworms wont work well with an oscar and kelberi quickly trying to gobble it up. My rays will actually swim up to the top of the water and try to steel my bass's food. Unless your ray is bigger than your other fish -and assuming the ray will be 4-5"- that shouldnt be a problem. Also, frequently check the water. When you have allot of messy fish in a tank that small, amonia can build up fast. I learned that the hard way.
Good luck

Actually I never once had a problem with the fish trying to steal food from the ray. I still had to put the worms on the bottom by hand since the worms would fly all over the place if I just threw em in. I used to feed this ray the amount you see in the vid 1-2 times a day. All the bass eats is shiners and nightcrawlers and my oscar eats tetra cichlid and hikari pellets. Plus the only bottom feeder is the pleco now and all he eats is hikari, algae wafers, and algae around the tank. Thanks that's a relief!