{"id":25,"date":"2018-11-07T02:26:50","date_gmt":"2018-11-07T02:26:50","guid":{"rendered":"https:\/\/robot.yeupet.vn\/?p=41"},"modified":"2018-11-07T02:26:50","modified_gmt":"2018-11-07T02:26:50","slug":"thiet-ke-ho-nuoi-ca-dia-phu-hop","status":"publish","type":"post","link":"https:\/\/robot.yeupet.vn\/index.php\/2018\/11\/07\/thiet-ke-ho-nuoi-ca-dia-phu-hop\/","title":{"rendered":"Thi\u1ebft k\u1ebf h\u1ed3 nu\u00f4i c\u00e1 d\u0129a ph\u00f9 h\u1ee3p"},"content":{"rendered":"
\n

K\u00edch th\u01b0\u1edbc h\u1ed3
M\u1ed9t sai l\u1ea7m m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi b\u1eaft \u0111\u00e2u nu\u00f4i CD hay m\u1eafc ph\u1ea3i l\u00e0 s\u1eed d\u1ee5ng h\u1ed3 qu\u00e1 nh\u1ecf. H\u1ea7u h\u1ebft CD nh\u1ecf \u0111\u01b0\u1ee3c nu\u00f4i khi ch\u00fang b\u1eb1ng \u00bc hay \u00bd t\u1edd dollar. \u0110\u01a1n gi\u1ea3n l\u00e0 h\u1ecd nu\u00f4i 6-8 con trong h\u1ed3 20 gallon (76l). \u0110i\u1ec1u n\u00e0y ho\u00e0n to\u00e0n sai l\u1ea7m. C\u00e1c nh\u00e0 g\u00e2y gi\u1ed1ng \u0111\u1ec1 ngh\u1ecb 40 gallon(152 l) l\u00e0 \u00edt nh\u1ea5t cho 1 c\u1eb7p. Ch\u00fang t\u00f4i c\u0169ng \u00e1p d\u1ee5ng lu\u1eadt n\u00e0y cho h\u1ed3 c\u1ea3nh. Ch\u00fang t\u00f4i ph\u1ea3i nu\u00f4i s\u00e1u CD tr\u01b0\u1edfng th\u00e0nh trong h\u1ed3 100 gallon( 380l), v\u00e0 ch\u1eebng n\u00e0y d\u01b0\u1eddng nh\u01b0 v\u1eeba \u1ed5n. Quan tr\u1ecdng l\u00e0 c\u00e2n nh\u1eafc c\u1ea3 k\u00edch c\u1ee1 v\u00e0 m\u1ee9c n\u01b0\u1edbc \u2013 b\u1ec3 cao ( 24 inches = 60,96cm) ph\u1ed5 bi\u1ebfn h\u01a1n b\u1ec3 th\u1ea5p, d\u00e0i v\u00ec CD tr\u00f2n. M\u1ed9t con c\u00e1 d\u0129a 8 inches cao h\u01a1n 1 con c\u00e1 8 inches kh\u00e1c nhi\u1ec1u.<\/p>\n

B\u1ea1n n\u00ean b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t s\u1ed1 c\u00e1 ch\u01b0a tr\u01b0\u1edfng th\u00e0nh l\u1edbn h\u01a1n l\u01b0\u1ee3ng b\u1ea1n \u0111\u1ecbnh nu\u00f4i v\u00e0 lo\u1ea1i ra nh\u1eefng con y\u1ebfu v\u00e0 x\u1ea5u n\u1ebfu c\u1ea7n thi\u1ebft. Ch\u00fang t\u00f4i th\u1ea5y r\u1eb1ng trong m\u1ed9t lo\u1ea1t c\u00e1 h\u01b0\u01a1ng b\u1ea5t k\u00ec, bao gi\u1edd c\u0169ng c\u00f3 nh\u1eefng c\u00e1 th\u1ec3 n\u1ed5i b\u1eadt v\u00e0 nh\u1eefng c\u00e1 th\u1ec3 qu\u00e1 hi\u1ec1n l\u00e0nh. Theo kinh nghi\u1ec7m c\u1ee7a ch\u00fang t\u00f4i, nh\u1eefng c\u00e1 th\u1ec3 hi\u1ec1n l\u00e0nh s\u1ebd ch\u1ebft \u0111i, b\u1edfi ch\u00fang kh\u00f4ng h\u00e1u \u0103n v\u00e0 b\u1ecb t\u1ea5n c\u00f4ng b\u1edfi nh\u1eefng con kh\u00e1c. N\u1ebfu ti\u1ec7m c\u00e1 b\u1ea1n mua cho \u0111\u1ed5i, b\u1ea1n c\u00f3 th\u1ec3 tr\u1ea3 l\u1ea1i v\u00e0i CD nh\u1ecf (ch\u00fang c\u00f3 th\u1ec3 l\u1edbn nhanh trong h\u1ed3 kh\u00e1c n\u1ebfu ch\u00fang tr\u1edf th\u00e0nh c\u00e1 th\u1ec3 n\u1ed5i tr\u1ed9i.<\/p>\n

L\u00e0m m\u1ec1m n\u01b0\u1edbc
Ch\u00fang t\u00f4i may m\u1eafn l\u00e0 c\u00f3 ngu\u1ed3n n\u01b0\u1edbc r\u1ea5t m\u1ec1m. N\u01b0\u1edbc c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e9n t\u1eeb h\u1ed3 ch\u00faa tr\u00ean n\u00fai v\u00e0 ch\u1ee7 y\u1ebfu l\u00e0 do tuy\u1ebft tan. N\u01b0\u1edbc c\u00f3 \u0111\u1ed9 c\u1ee9ng trung b\u00ecnh 0.5-1 GH. \u0110\u1ed9 c\u1ee9ng n\u00e0y ph\u00f9 h\u1ee3p cho h\u1ed3 nu\u00f4i c\u00e1 d\u0129a tr\u01a1n nh\u01b0ng qu\u00e1 th\u1ea5p cho h\u1ed3 rong ph\u00e1t tri\u1ec3n, ch\u00fang t\u00f4i th\u00eam CaCO3 \u0111\u1ec3 t\u0103ng Gh \u0111\u1ebfn 2. Trong h\u1ed3 CD 100gallon, ch\u00fang t\u00f4i th\u00eam kho\u1ea3ng 4 mu\u1ed7ng tr\u00e0 (8g) CaCO3.<\/p>\n

L\u01b0u \u00fd: \u0111\u1ec3 tham kh\u1ea3o, 2 mu\u1ed7ng( 4g) CaCO3 v\u00e0o 50 gallon n\u01b0\u1edbc s\u1ebd t\u0103ng c\u1ea3 GH v\u00e0 KH x\u1ea5p x\u1ec9 1 b\u1eadc. M\u1ed9t mu\u1ed7ng( 6g) sodium bicarbonate v\u00e0o 50 gallon n\u01b0\u1edbc s\u1ebd t\u0103ng KH l\u00ean 1 b\u1eadc v\u00e0 kh\u00f4ng t\u0103ng GH. H\u00e3y lu\u00f4n dung b\u1ed9 th\u1eed \u0111\u1ec3 xem b\u1ea1n c\u00f3 th\u00eam \u0111\u1ee7 ch\u1ea5t l\u00e0m c\u1ee9ng ch\u01b0a, r\u1ea5t kh\u00f3 \u0111\u1ec3 c\u00f3 m\u1ee9c \u0111o ch\u00ednh x\u00e1c v\u1ec1 ch\u1ea5t l\u00e0m c\u1ee9ng kh\u00f4 n\u1ebfu kh\u00f4ng c\u00f3 d\u1ee5ng c\u1ee5 \u0111o nh\u1ea1y. V\u1edbi h\u1ea7u h\u1ebft d\u1ee5ng c\u1ee5 \u0111o dung cho b\u1ec3 c\u00e1, 1 \u0111\u1ed9 c\u1ee9ng( dGH hay dKH) t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 17,8g\/l CaCO3 \u2013 ti\u00eau chu\u1ea9n \u0111o l\u01b0\u1eddng.<\/p>\n

\"cadia2\"<\/p>\n

H\u1ea1 pH
Ngay c\u1ea3 khi CD th\u00edch pH th\u1ea5p, ch\u00fang t\u00f4i gi\u1eef pH h\u1ed3 trong kho\u1ea3ng 6.9. Ch\u00fang t\u00f4i \u0111i\u1ec1u ch\u1ec9nh KH v\u00e0 l\u01b0\u1ee3ng CO2 \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee9c pH mong mu\u1ed1n. Trong h\u1ed3 tr\u01a1n, nhi\u1ec1u h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc ngo\u00e0i th\u1ecb tr\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh pH. Tuy v\u1eady, nh\u1eefng ch\u1ea5t n\u00e0o th\u01b0\u1eddng ch\u1ee9a photphate v\u00e0 g\u00e2y ra t\u1ea3o trong h\u1ed3 c\u00f3 l\u01b0\u1ee3ng s\u00e1ng v\u00e0 dinh d\u01b0\u1ee1ng cao.<\/p>\n

\u0110\u1ec3 \u0111i\u1ec1u ch\u1ec9nh pH, ch\u00fang t\u00f4i d\u00f9ng sodium bicarbonate (NaHCO3, s\u00f4 \u0111a th\u00f4ng th\u01b0\u1eddng) \u0111\u1ec3 t\u0103ng KH c\u1ee7a ngu\u1ed3n n\u01b0\u1edbc t\u1eeb 2 l\u00ean 4 \u0111\u1ed9 ( t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ch\u1eebng 70 mg\/l CaCO3). L\u01b0u \u00fd l\u00e0 CaCO3 th\u00eam v\u00e0o tr\u01b0\u1edbc \u0111\u1ec3 t\u0103ng Gh c\u0169ng t\u0103ng KH; lu\u00f4n ki\u1ec3m tra Kh sauu khi t\u0103ng GH \u0111\u1ec3 xem b\u1ea1n c\u1ea7n th\u00eam bao nhi\u00eau s\u00f4 \u0111a. Trong tr\u01b0\u1eddng h\u1ee3p ch\u00fang t\u00f4i, 2 mu\u1ed7ng( 12g) s\u00f4 \u0111a \u0111\u01b0\u1ee3c th\u00eam v\u00e0o \u0111\u1ec3 c\u00f3 4dKH.<\/p>\n

L\u01b0u \u00fd: h\u1ea7u h\u1ebft d\u1ee5ng c\u1ee5 \u0111o KH th\u1eadt s\u1ef1 \u0111o t\u00ednh ki\u1ec1m, n\u1ebfu carbonate l\u00e0 ch\u1ea5t \u0111\u1ec7m duy nh\u1ea5t trong n\u01b0\u1edbc, to\u00e0n b\u1ed9 t\u00ednh ki\u1ec1m t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111\u1ed9 c\u1ee9ng c\u1ee7a carbonate. N\u1ebfu c\u00f3 ch\u1ea5t \u0111\u1ec7m kh\u00e1c nh\u01b0 g\u1ed1c phosphate, b\u1ea1n s\u1ebd kh\u00f4ng \u0111\u1ecdc \u0111\u01b0\u1ee3c Kh th\u1eadt s\u1ef1 t\u1eeb b\u1ed9 th\u1eed. H\u00e3y xem x\u00e9t c\u1ea9n th\u1eadn.
Nh\u00e2n t\u1ed1 th\u00eam v\u00e0o \u1ea3nh h\u01b0\u1edfng pH l\u00e0 l\u01b0\u1ee3ng CO2. Khi KH t\u0103ng, pH c\u0169ng t\u0103ng theo. \u0110\u1ec3 l\u00e0m pH tr\u1edf l\u1ea1i t\u00ecnh tr\u1ea1ng mong \u0111\u1ee3i v\u00e0 cung c\u1ea5p \u0111\u1ee7 CO2 cho c\u00e2y ph\u00e1t tri\u1ec3n t\u1ed1t, ch\u00fang t\u00f4i ti\u00eam th\u00eam CO2 \u0111\u1ec3 \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng 15 mg\/l . H\u00e0m l\u01b0\u1ee3ng CO2 n\u00e0y v\u00e0 4 dKH s\u1ebd t\u1ea1o ra pH 6.9. C\u00f3 nhi\u1ec1u phi\u00ean b\u1ea3n b\u1ea3ng KH\/CO2\/pH tr\u00ean Internet n\u00ean b\u1ea1n c\u00f3 th\u1ec3 quy\u1ebft \u0111\u1ecbnh KH v\u00e0 CO2 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u c\u1ee7a m\u00ecnh. Ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n kh\u00f4ng n\u00ean t\u0103ng h\u00e0m l\u01b0\u1ee3ng CO2 v\u01b0\u1ee3t qu\u00e1 15-20g\/l \u0111\u1ed1i v\u1edbi CD.<\/p>\n

Ch\u00fang t\u00f4i th\u00edch x\u00e0i b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh pH c\u00f3 th\u1ec3 \u0111o pH trong b\u1ec3 v\u00e0 t\u1eaft m\u1edf cu\u1ed9n c\u1ea3m \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng CO2. N\u1ebfu th\u1eadn tr\u1ecdng, b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m tay. Sau khi c\u00f3 \u0111\u1ed9 KH th\u00edch h\u1ee3p, \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng C\u00d2 \u0111\u1ebfn khi b\u1ea1n c\u00f3 \u0111\u1ed9 pH mong mu\u1ed1n.<\/p>\n

T\u0103ng nhi\u1ec7t \u0111\u1ed9
NNTS th\u1ea5y CD ch\u1ed1ng ch\u1ecdi b\u1ec7nh t\u1eadt t\u1ed1t h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao, v\u00e0 \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 t\u1ea7m 27-30C ho\u1eb7c cao h\u01a1n. T\u1ea3o s\u1ebd l\u00e0 v\u1ea5n \u0111\u1ec1 kh\u00f3 gi\u1ea3i quy\u1ebft \u1edf nhi\u1ec7t \u0111\u1ed9 cao, n\u00ean ch\u00fang t\u00f4i \u0111\u1ea7u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 kho\u1ea3ng 27,78C th\u00f4i.
M\u1eb7t t\u00edch c\u1ef1c c\u1ee7a vi\u1ec7c t\u0103ng nhi\u1ec7t \u0111\u1ed9 l\u00e0 d\u00e2y t\u00f3c s\u01b0\u1edfi kh\u00f4ng l\u00e0 v\u1ea5n \u0111\u1ec1 nh\u01b0 \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. NNTS kh\u00f4ng \u1edf trong ph\u00f2ng \u0111i\u1ec1u h\u00f2a th\u1ea5y nhi\u1ec7t \u0111\u1ed9 b\u1ec3 v\u00e0o m\u00f9a h\u00e8 kho\u00e0ng 80F v\u00e0 tr\u00e1i v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng d\u00e2y t\u00f3c s\u01b0\u1edfi \u2013 nhi\u1ec7t \u0111\u1ed9 t\u0103ng th\u00eam kh\u00f4ng c\u1ea7n thi\u1ebft v\u00e0 d\u00e2y s\u01b0\u1edfi ch\u1eb3ng l\u00e0m g\u00ec c\u1ea3.<\/p>\n

Cung c\u1ea5p Oxy
Do nhi\u1ec7t \u0111\u1ed9 cao, l\u01b0\u1ee3ng oxy trong b\u1ec3 \u00edt h\u01a1n. T\u1ea1i m\u1ef1c n\u01b0\u1edbc bi\u1ec3n, oxy h\u00f2a tan \u1edf 75F l\u00e0 8,4 mg\/l, \u1edf 86F ch\u1ec9 c\u00f2n 7,6 mg\/l. S\u1ef1 gi\u1ea3m s\u00fat n\u00e0y c\u00f2n nhi\u1ec1u h\u01a1n n\u1ebfu b\u1ea1n \u1edf v\u1ecb tr\u00ed cao h\u01a1n \u2013 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a \u0111\u1ed9 cao (ch\u00fang t\u00f4i \u1edf \u0111\u1ed9 cao 5000 feet) v\u00e0 n\u01b0\u1edbc \u1ea5m gi\u1ea3m l\u01b0\u1ee3ng oxy \u0111\u00e1ng k\u1ec3. B\u1ec3 rong r\u1ea5t h\u1eefu \u00edch cho CD v\u00ec rong c\u00f3 th\u1ec3 b\u00e3o h\u00f2a n\u01b0\u1edbc c\u1ea3 ng\u00e0y, \u0111\u1ea9y l\u01b0\u1ee3ng oxy b\u00e3o h\u00f2a l\u00ean 120% ho\u1eb7c cao h\u01a1n. Ch\u00fang t\u00f4i th\u01b0\u1eddng \u0111o \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng oxy 8,3 mg\/l v\u00e0o chi\u1ec1u t\u1ed1i \u2013 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi n\u01b0\u1edbc ngu\u1ed9i \u1edf m\u1ef1c n\u01b0\u1edbc bi\u1ec3n.<\/p>\n

\u0110\u1ec3 an to\u00e0n h\u01a1n, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng m\u00e1y l\u1ecdc ch\u1eadm \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u01b0\u1ee3ng oxy trong n\u01b0\u1edbc ngay c\u1ea3 chi\u1ec1u t\u1ed1i khi t\u1eaft \u201cn\u1eafng\u201d v\u00e0 c\u00e2y ng\u1eebng quang h\u1ee3p. L\u01b0u \u00fd cho l\u01b0\u1ee3ng oxy v\u00e0o kho\u1ea3ng 90% v\u00e0o bu\u1ed5i s\u00e1ng tr\u01b0\u1edbc khi \u201cn\u1eafng\u201d l\u00ean l\u1ea1i. l\u01b0\u1ee3ng oxi n\u00e0y c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch b\u1eadt oxi ban \u0111\u00e2m, nh\u01b0ng g\u00e2y m\u1ea5t r\u1ea5t nhi\u1ec1u CO2.<\/p>\n

Ngu\u1ed3n chimcacanh<\/strong><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

K\u00edch th\u01b0\u1edbc h\u1ed3M\u1ed9t sai l\u1ea7m m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi b\u1eaft \u0111\u00e2u nu\u00f4i CD hay m\u1eafc ph\u1ea3i l\u00e0 s\u1eed d\u1ee5ng h\u1ed3 qu\u00e1 nh\u1ecf. H\u1ea7u h\u1ebft CD nh\u1ecf \u0111\u01b0\u1ee3c nu\u00f4i khi ch\u00fang b\u1eb1ng \u00bc hay \u00bd t\u1edd dollar. \u0110\u01a1n gi\u1ea3n l\u00e0 h\u1ecd nu\u00f4i 6-8 con trong h\u1ed3 20 gallon (76l). \u0110i\u1ec1u n\u00e0y ho\u00e0n to\u00e0n sai l\u1ea7m. C\u00e1c nh\u00e0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-25","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/posts\/25","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/comments?post=25"}],"version-history":[{"count":0,"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/posts\/25\/revisions"}],"wp:attachment":[{"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/media?parent=25"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/categories?post=25"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/robot.yeupet.vn\/index.php\/wp-json\/wp\/v2\/tags?post=25"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}