Backyard Aquaponics
A place to discuss aquaponics

Help 21 DAY OLD SYSTEM
Help 21 DAY OLD SYSTEM
FT = 200 LITERS
GB = 20 LITERS X 2
FISH = 35 RED TILAPIA SMALL
PLANTS = 1 CHILLI, 6 LETTUCE SEEDLING, 2 FLOWERS
FILTER = 1 OVERHEAD
AERATION = LOT
ADDITIVE = SEAWEED EXTRACT

DAY 20
MY MASTER KIT JUST ARRIVED
pH = 8.4
AMMONIA = 0-0.25PPM
NITRATE = 80PPM

IAM CONCERNED RIGHT NOW, WHAT REMEDIES SHOULD I DO?
THANKS

hi tiger
i see no issue with your system, other than it is cycling, so patience is your best friend what is your nitrite reading? thats the bad one . . .

with your PH that high, feed minimal, and i would stop until ammonia hits 0, the lightly feed. if you havent already, salt to 1ppt (1kg salt per 1000L of water) also you are seriously over stocked with 35 fish in 200L of water and 40L of GB, your filter might help but i would suggest either getting rid of some fish or rampling up your filtration. aso plant more, to reduce your rates. good luck

yep, overstocked and need more plants

THANKS GUYZ
HERE ARE SOME PHOTOS OF MY SYSTEM

The coffeepot and the beer are a nice touch !

Yep - you definitely need more growbeds and less fish.

OTHER PHOTOS

what a cooll little net windo system
maybe you could use a external filter to keep the fish, but eventually they will simply outgrow the FT sorry

IAM THINKING OF ADDING A FLOATING RAFT AT THE BOTTOM,
DO U THINK ADDING A FLOAT RAFT CAN HELP LOWERING MY NITRATES LEVEL.
CORRECT ME IF I'M WRONG, WILL THIS WORK FINE.
THANKS

yep will help with the nitrates only, not ammonia or nitrites

is your computer stuck on caps lock?

Your problem will be filtration. Adding a floating raft, as I understand it will remove nitrates from your system but won't do much (or anything) to your nitrite and ammonia levels. It is these two which can kill your fish.

You need more gravel or less fish.

Given the size of your fish tank I would say less fish.

Thanks guyz. sorry for the caps lock.
I will lessen my fish density, put it in other tank,
make additional float raft and biofilters,
Ill check also my grow media which is gravel and charcoal.

hello,
i just measured the nitrite this morning = 2 ppm
nitrate = 80 ppm
pH = 8.4
ammonia = 0 to 0.25ppm

i transfered 15 tilapia in other tank.

Have you salted the tank as Freoboy said above. With nitrites that high it is a must really

40L of gb will support 3 fish, maybe add some filtration now

Yap i just salted the tank, hopefully ill get good result later.