Fist timer

Hello people im a first timer so is going to probably need some help through the process
My set up:
1.2m tent 2m high
600W hps
Cool tude
4 inch intake fan
4 inch exhaust fan
2x6" fans
Nutes:Canna Rhizotonic,Canna Terra vega ,Canna Flores ,Canna Boost.
light is around 24" away
Temp 25 with light on and 18 when off im doing a 20-4 light schedule
I Planted 20 seelings On the 17th March all look good bar 1 i gave them there first Canna vega feed on the 19th with also Rhizotonic mixed in.

Should add im doing Easy Ryder as of its quick growth life cycle

Can someone Please tell me how often i should be watering them

just feed when the top of the soil is completely dry, itl dry out quicker if the pots are smaller,
the bigger the pot the longer it will retain moisture.

Thanks mate the pots im using are just over a gallon so no that big i was looking at air-pots maybe for next time they looked quite interesting

you said ur doing easy ryder so i presume that is an autoflowering strain so 1 gallon is probably perfect for it.
im growing green o matics and i have to water them everyday in 1 gallon pots.
but my green o matics are pretty big, so depending on how big your babies get youl either need to water them once a day or once every second day!

Yeah there an auto strain and was going to go with every other day to start and see how they react

Also how much water do i feed them with? and how du upload photos on here?