How long has it been without a UV tube?
There's no substitute for a duff UV tube, barley straw will take about 3-4 weeks min to even start doing anything, if it does at all. My advice is to get one spare and replace round about early spring, depending on weather conditions, change so much these days who knows what weather we'll get. Be prepared next year and have a spare.
TANK 1. 1 BGK, Pair Gold Panchax, 1 Sailfin plec. Mopani wood + Fake silk plants. Substrate, sand + gravel. Ext filt.
WEBCAM TANK 2. 15 Copper Harlequins (Hengeli), 3 albino bristlenose (2 m + 1 f), 1 Lda031, 1 Male CT Betta, 2 Adolphi Cory's, 5 chain loach, 3 Albino Cory(1 highfin), 4 Axelrodi Cory, 15 pygmy cory's, 2 Hoplo Littorale, 12 Popondetta Furcata, 3 Bamboo Shrimp, 6 Amano shrimp & 1 misc long armed shrimp (possibly Indian). Plants, Sword, Bacopa Caroliniania, Vallis Nana, Rotala Wallichii & Cabomba, Driftwood. Susbtrate, sand + gravel. Ext filter.
