I have a Telescope named Google, and he hogs my Black Moors food. He will protect the food and eat fast and also fight for the food, bullying my Oscar around during feeding.
I tried different feeding methods, dropping a large amount of pellets in first to keep Google busy, because he would inhale like 8 pellets at a time, and then drop some more food so that Oscar could get some. That just ended up Google getting overfeed. My Oscar is a sensitive fish when it comes to her food so I have to feed her homemade gel food. I drop the gel food in the tank and it goes all over and Oscar usually gets her share. Oscar is eyesight handicapped so she always goes to the same spot in the tank to feed. So if the food is not there she wont get any. This results in Google getting over fed again. I thought of a tank divider but with my 30 Tall tank I would have to custom cut one. If you have ever used a tank divider you would know what a pain these things are to remove with all the filters, heaters, and air stones in the road.
My Oscar was flipping upside down and floating because of the pellet food and the inconsistent amount of food she was getting. Because Google was so aggressive I just kept adding food hoping Oscar would get here share. This caused problems on so many levels. More waste which is more ammonia. I finally found a solution:
Keep a Rubbermaid container next to your tank with a small amount of water in it, primed of course. When it is feeding time use a milk bag pitcher and transfer some tank water to the Rubbermaid. Net the dominant fish and release him/her (most likely a male) into the Rubbermaid. Feed each fish and allow them to eat in peace. I use an air stone in my Rubbermaid to ensure oxygen is always at a good level, that way I can leave Google in there for an hour if I want. When the feeding is over net the dominant one and release him back into the main tank and transfer over half of the Rubbermaid water into the tank. This way the water stays filtered and cycled. When it is feeding time repeat.
With multiple fish try removing the most dominant one and monitor the behavior during feeding. If necessary upgrade to more rubbermaids for each fish. Even if you have a 55 gallon tank you shouldn't need any more than 3-4 Rubbermaids. This is worth the health benefits for your water and your fish.
Good luck and here are some pictures
All you need:
Thanks for reading