
Oscar
Astronotus ocellatus
Care Sheet
Temperature
20–28°C
pH Range
6-7.5
Min Tank Size
540 L
Max Adult Size
35 cm
Special requirements
Equipment Protection
Known to physically break internal equipment. Submersible heaters should be fitted with guards or, ideally, situated externally in a sump or inline.
Massive Waste Management
Exceedingly messy feeders. Requires oversized filtration and a strict 30-50% weekly water change schedule to prevent Nitrate buildup.
Interactive/Destructive Decor
Will actively dig and 'redecorate' the aquarium. Rooted plants will be destroyed. Use heavy driftwood or rocks that cannot be easily shifted.
Hunting Behavior (Thanatosis)
Some wild populations use 'death-feigning' strategies to lure prey. In captivity, they are highly intelligent and will 'beg' for food from their owners.
Track Oscar in your tank with Mahiyar.