1st Batch Tilapia Seedlings TDS & pH Record

1st Batch Tilapia Seedlings

Date	Time	TDS	Observations
20190806	1030	75	12 fish; 5 days old; Water is clean and clear; Stop pumping: 1630 - 2300
20190807	1400	81	Water is clean and clear; Stop pumping: 0900 - 1900 ; 1500 added 5L of sun-baked tap water
20190809	1400	90	Stop pumping: 2300 - 1500
20190810	1200	93	Stop pumping whole day
20190813	2300	119	On pumping: 2200 - 0730（11th）; 1630 (12th）add in 浮萍
20190817	1800	164	Water is murky; reduce water to ~15L (5 cm height) (14th); 1300 (17th) add in moss
20190818	1900	160	replaced half the water with deep green algae water, placed under sun (1100, 18th)
20190820	1800	154	Faeces removed, changed 20% water
20190828	1900	191	~ 3 mL fish feed ( 20th): finished by next day morning; ~ 4 mL fish feed (21st): finished by next day evening; changed 20% water; ~ 1mL feed dose (23th 1800 - 24th 0900, 24th 0900 - ? ); placed under sun; 2mL fish feed 1000 (26th). 檐蛇出没。~ 0.5mL fish feed 1600 (28th): Fishes float to eat.
20190831	1300	265	[29th] ~ 40 pellets feed @ 1000: Fishes float to eat; ~ 0.5mL feed @ 1700: Fishes float to eat and finished in 60 minutes; ~ 2 mosquitoes spotted @ 1800; Fishes float to breath @ 2200, 2330: due to light; [30th] ~ 0.5mL feed @ 0800: Fishes float to eat and finished in 40 minutes (15 mins: 70%, 20 mins: 90%, 30 mins: 97%); ~ 0.5mL feed @ 1455: Fishes float to eat and finished in 40 minutes (5 mins: 20%, 10 mins: 50%; 15 mins: 60%; 20 mins: 70%, 30 mins: 95%); ~ 2 mosquitoes spotted @ 1900; [31st] No feeding
20190903	1200	336	[1st] ~ 1.5ml feed @ 0745 (20 mins: 20%, 40 mins: 40%, 90 mins: 50%, 180 mins: 90%); ~ 1.0ml feed @ 1248 (10 mins: 20%, 30 mins: 30%, 60 mins: 40%, 120 mins: 90%, 180 mins: 100%); [2nd] No feeding [3rd] added "black lumps" removed from bottom of water flea box (water fleas unintentionally added along) @ 1000; ~ 1.0ml feed @ 1020 : 180 mins, 1430 : 90 mins, 1640 : 100 mins, 1930 : 30 mins, 2045 : 30 mins ;
20190903	1800	262
20190903	1900	258
20190903	2200	262
20190904	0930	263
20190904	1030	266
20190904	1120	275
20190904	1205	350
20190904	1240	359
20190904	1310	333
20190904	1900	275
20190905	0800	295
20190905	1430	341
20190905	2230	537	add brine to raise SALINITY
20190906	1110	642	added green algae water @ 1030 to make Total VOLUME = 30L (h = 10 cm); added brine to raise SALINITY; Total SUGAR = 50 mg @ 1040;
20190906	2045	721	added brine to raise SALINITY; 2 mL @ 2100, 6th;
20190907	1130	1150	added brine to raise SALINITY; Total SUGAR = 100 mg @ 1040;
20190907	2200	1130	3 mL feed @ 2020; added brine to raise SALINITY;
20190908	1230	1470	added brine to raise SALINITY; 5 fishes DIED due to salinity shock (upon transfer to 100++ ppm water for length measurements)
20190908	1300	1440
20190908	1330	1410
20190908	1400	1390	Total SUGAR = 200 mg
20190908	1430	1380
20190908	1500	1380
20190908	1530	1370
20190908	1600	1350
20190908	1700	1320
20190908	1800	1290
20190908	1900	1260
20190908	2130	1210	2 mL feed @ 1930;
20190909	1130	1490
20190910	0930	1280	Total VITAGEN = 1 mL @ 1250; 2 mL feed @ 1830; Total SUGAR = 350 mg
20190910	1600	1610	10 mL feed + 3 g creamer + 7mL 0.1g/mL sucrose soln ➡ dough stuck at box wall @ 1300 (scattered immediately 😣) ; Total SUGAR = 1050 mg;
20190911	1945	1730	added brine to raise SALINITY
20190912	1630	1820	Total SUGAR = 1250 mg @ 0745; added brine to raise SALINITY
20190913	1400	2090	added brine to raise SALINITY; Total SUGAR = 1500 mg @ 1345
20190914	0915	1770
20190914	2130	1840	Total SUGAR = 1750 mg @ 1030
20190915	1600	2050	Total SUGAR = 1950 mg @ 1015
20190916	1130	2300	10 mL feed + 9.5 mL 0.1g/mL sucrose soln ➡ DOUGH, sun-baked in situ ➡ immersed @ 1845, 15th - 1100, 16th; Total SUGAR = 2900 mg ; ~ 2/3 feed DOUGH consumed by 0700; Total SUGAR = 3100 mg @ 0700; Total SUGAR = 3500 mg @ 1000; Total SUGAR = 4200 mg @ 1015;
20190917	1700	2170	Total SUGAR = 4700 mg @ 1500, 16th; Total SUGAR = 5200 mg @ 1030; Total SUGAR = 5700 mg @ 1200; Total SUGAR = 6700 mg @ 1300; Total SUGAR = 7300 mg @ 1500; Total SUGAR = 7900 mg @ 1545; added 2 mL FLOUR @ 1600; Total SUGAR = 10300 mg @ 1645, Added 6 mL FLOUR @ 1710, 17th; Total SUGAR = 15300 mg @ 1800, 17th; 4 fishes DIED by 0800 (most likely due to LACK OF OXYGEN);

Date	Time	pH	Observations
20190807	1400	6.2
20190809	1400	6.3
20190810	1200	6.6
20190813	2300	7.6	1630 (12th）add in 浮萍
20190817	1800	7.3
20190818	1900	7.8	replaced half the water with deep green algae water, put under sun
20190820	1800	7.4
20190828	1900	10.1
20190831	1300	10.6
20190903	1200	9.5
20190905	1430	10.4
20190909	1230	10.2
20190909	1630	10.1	Total VITAGEN = 1 mL @ 1250
20190912	1300	9.9

Tilapia Rearing Box

Date	Time	TDS	Observations
20191001	1700	730
20191002	1000	686
20191003	2300	705
20191005	1400	729
20191006	0730	645
20191008	1830	606	Huge rain during noon on 7th and 8th
20191009	0730	572
20191010	0700	573