lol Hi again guys:>

My oscar has been acting weird latly.

Ever since i have gotten my canister filter my big oscar has been digging a pit and scaring all the other fish away from it.

i would think he/she would be breeding with my other oscar but he scares the other fish away to any ideas would help greatly thanks again :>


1-55 gallon c-220 marineland canister filter
1 aquaclear 30 powerhead
55 gallon tank
2-oscar
1columbian shark.:>

You are rather overstocked unfortunately. The Colombian shark can reach 12 inches +.

Okay, depends how old the Oscars to whether they are sexually mature. Digging pits in the substrate is certainly something a breeding pair of Oscars will do. If they're going to breed, you will also see them cleaning off a flat rock, or the nearest object to that. Unfortunately, Oscars will clean rocks, shovel gravel etc and never breed, it's just instinct with some of them.

Not letting other fish anywhere near where eggs are going to be laid is extremely common. This is common in nature, not just fish. They obviously don't want any disturbance or the chance that the eggs will be Eaten.