Got a few questions

Posting here since the discord is pretty messy and I don't think my questions are gonna be spotted from the mass spam of messages

1. What's my best setup for pets? Currently have 5 slots and I can't attach links but ik my most notable ones are mole, moon cat, caterpillar, tarantula hawk, red ant, mimic octopus, praying mantis, snail and dragonfly

2. How big does a pet need to be in kilos to be considered "giant"? And do they need to be low-leveled to be giant? I've gotten some pets hatched that are above level 1 and they look big when I hold them

3. Should I get into trading? Apparently the mimic octopus I have goes for a lot but I also know trading is really risky

4. Any strats for the summer harvest? Atm my strat is having a bunch of tomatoes in one place, use basic, advanced and godly sprinklers on them when the event starts/halfway and send them in to the cart

5. How do sprinklers work on the inside? Can they stack? Do they boost both the growth speed of the base plant and the fruit? And do we know the exact boost numbers for the sprinklers in the gear shop? The wiki

Sorry if this is a lot but I started about 2 weeks ago so I'm still new