I Have had 2 fantail fish for approx 3 months, i always clean the tank and do a water chage every 4 weeks but only recentley i have noticed that the plastic plants in the tank have started to discolour to brown, does anyone know what may be causing this??
You can buy a products that can kill algae for fish tanks i think it might be algazine or somthing like that which is safe for fish but kills algae and last for ages