for a start, the bolded, put a sponge filter into the pail, air pump it for 24 hours, then it is good to go already. 2 days is already more than enough for the water to be safe for use.

what filter are you using? i'm only using sponge filter, don't have other type of filter also. i suspect, in your tank, already got some kind of virus brought in by your guppies, or even the fake plant, should be washed before use. how often do you change water? when i'm free, I used to 30% water daily, or about 50% every 2 days, or about 70-80% water every 3-4 days. keep the condition of the water good to keep your guppies healthy.

no need to put salt unless there's sick fish inside. after water change, put salt then don't feed for 2 days. see how it goes. or you can quarantine your sick fish. but if i were you, i will start all over again, as in, clear all the tank, clean it, put water into it, let it run for at least 2-3 days with sponge filter before introducing any fishes.  good luck.
indirect sunlight could also caused green water. green water doesn't mean it is not good, it's good for fishes too, but you cannot see them only. can try doing large water change and see how it goes. what kind of plant are they?

i change about 50% every 2-3 days.

5 days imo is a bit too long already.

Sharing my overpopulated office setup. 

HD? :confused:

sorry I'm not familiar with corydoras. perhaps others who know can help you on this.

but xian leng is definitely not easy to get there if by public transport. their place used to be super big. now that they moved, probably around half the size maybe?

Fish depot got 2ft, 3 compartment. RM50

got your fishes already? 

it depends on what's your main concern. small tanks like how small? plastic or glass?
a 2ft 3 compartments tank cost you 50bucks. but a 3 individual tanks that make up a 2ft in total size may cost you 40 bucks each = 120 bucks total.

i dont think it is cheaper.

got yellow tux ad? share mah...
also, what is your expected budget for those fishes during the event?
yeah it depends on what you want also la... true...

top up a bit you can get those participated but not won anything in the competition. look for me if you wish to book any pair of fishes during the event.

nope. not competing.

metal grass is not so easy to find unless in penang. blue grass can be found here. where do you based?
i can check around for you, normal to good grade can range from 60-120 or 150 for grade A type.
can drop me a pm for more. thanks. i'm not selling as i dont keep blue grass now, but i can connect you to the seller.

hello guys. please come to mid valley for the guppy contest this weekend ya!

we're expecting around 120 pairs of fishes to compete in 10 different categories.

we will also be bringing some beginner grade fishes for sale on the spot.

Saturday OK. Anytime