I have a planted tank with dimension : 70 x 40 x 40 cm,
12000K 36 W PL lighting,
Silica sand substrate plus some tablet ferts,
Excel and JBL Ferropol dosing every 3-4 days.
Flora mostly Echinodorus, some crypt an Aponogeton.
At the begining, I use a bogwood for my hardscape, but few days later it has some white slime (maybe fungus) grow on it. Then, two CAEs, 4 Swordtails and 6 guppies die, while 20 RedNose Tetras is just doing well, my curiosity about cause of death is those fishes was eat the fungus , so I remove the wood from the tank and boil it.
Then I try to put it back in the tank, but few days later, the slime is back, so I take out again and soak it in water bucket for 3 weeks, then I can't see the slime.
Recently, I put back the wood in that tank and try to put in 1 CAE and 1 albino red fin. I can't see any white fungus in the wood now. BUT,Those two fishes just last for TWO days in that tank, while 20 RedNose Tetra still doing very fine.. Red fin is look like disoriented before died and CAE is sunk few hours later with "exploded" stomach.
WHAT happen in my tank? Do I need to dose some Plant Safe - Anti Fungus?
Please help, I really confused right now., thanx a lot folks..