its been running for 1 year and a half , i used to have a reef , its a 100 gallon , its 900 gallon is being setup right now . just gonna take a month before its done . so i was leaving it in the 100 till its done , everything is fine . ive had saltwater aquariums since i was 13 , im 30 now . i just really want this shark to hatch ! and thats the space the yolk is under the shark thats the top of the shark head.