im a new grower advice is always welcome but i am on a strict budget just entered week 4 and have transplanted into 25L pot

you transplanted into a hug pot. This is not wise. Also, a blend of coco and soil is not good enough drainage/aeration. it will 'work' but you can do better for the roots than that by far. you don't have to do anything for the roots but water properly, which is more difficult in a large pot/tiny plant context. Usually you just fully saturate and the rest takes care of itself. With a tiny plant you'll want to water a small column around the plant - ensure the moisture gets all the way down to the bottom for a proper drying pattern and roots trained to grow deep rather than superficially. Fully watering with such a tiny plant would just be a b unch of stagnating water for a couple weeks, lol. if you have proper watering habits, the roots will grow as they should. Roots grow toward greater moisture. If you water superficially they turn toward the surface and that is the opposite of what you want. coco portion should be 2:1 coco:perlite. A higher water-capacity soil should be 1:1. Does not have to be perlite. other drainage amendments exist. so about 45% of total volume would be the weighted average for this 70/30 mix. Unless you have a severely dry climate, take off the dome. Also, based on number of fan leaves close together on stem you are or were giving too much light. Most likely why the plant is on the pale side too. You probably don't need a 7 gallon pot unless you are trying to fill an entire 3x3 with 1 plant. so, you can save a couple bucks there in future.

That transplant into a 25L pot with a 70/30 soil-coco mix is a solid move, your roots are gonna love that space. Just keep in mind, coco dries quicker, so bump up your watering soon and aim for light runoff to keep salts from building up. You’re only giving 0.2L a day right now, that’s fine right after transplant, but you’ll wanna slowly increase it and water the whole pot to wake those roots up. Temps and light distance look dialed in. If you can, push to an 18/6 light cycle for a bit more veg energy. Your nutes are solid, but that B’cuzz A+B is low, try upping it to 1ml/L over the next week unless the plant says otherwise. CalMag is crucial with coco so keep that steady. Don’t stress if growth slows this week roots are settling. By next week, she should take off💪👊👍

Let's hope you done your homework on coco. Please take off the dome. 0.04% of air is co2, green needs co2 and airflow, not to breathe in water. 80rh stomata close entirely, no gas exchange , no photo, no growth. A seedling need for high humidity is more to prevent the tiny seedling losing water too fast than it's tiny rootzone can keep up with. To alleviate that initial concern add a removable mulch a couple inches around the plant to assist in water retention at least till she has a developed root system. Problem with big pots and tiny seedlings is that gravity will pull moisture far out of reach quickly especially in well draining coco. Until the seedling fills the pot , every ounce of moisture in the big pot is at the behest of evaporation. Transpiration is the plants roots pulling water out the pot and up the plant out the leaves. But when your seedling roots are same size below as they are above, until the roots fill that pot. Your medium is at the mercy of evaporation. If evaporation doesnt occur within a time frame, stagnation will occur, unwanted bacteria quickly follows. Long 18 hour days, light can dry up top few inches fairly fast leaving water out of reach, this is good in the sense it will signal to plant to growth spurt the rootzones to find water further afield, but it's limited-time often in my early days I'd have problems initially keeping moisture in big pots like such during long warm 18 hour days. If you have the luxury to give more frequent smaller watering as opposed to once every other day. Just make sure she ist running out or low on water, then you can let humidity sit where it sits . Ideally a higher humidity would allow for a more optimal vpd, but you have to take into account evaporation at least till roots fill the pot then you can focus on high humidity and vpd. Best of luck with the new hobby, wish you best of growth going forward, ✨️. Peace.

Hey 👋 Schaut vernünftig aus, und du hast eigentlich alles was du benötigst. Die Schicht aus überwiegend Kokos ist sogar von Vorteil, da Trauermücken nicht gerne dort verweilen. Du hast meiner Meinung nach allerdings die Lampe viel zu nah an der Pflanze, weshalb sich deine Blätter auch drehen. Das bestätigt sich auch, wenn man die internodiellen Abstände betrachtet. Desweiteren hast du in deinem Report von kräuselnden Blättern gesprochen — auch dies ist ein Indikator für Lichtstress. Ich würde also die Lampe ein wenig höher hängen. Ein gutes Maß sind ca. 35-40 cm von der Pflanzenspitze zur Lampe. Ich hoffe das hilft. Happy growing 👊🍀🖖