White spots and looks dull
What are these white spots?! Is my cactus okay? It’s gotten really tall, but no flowers have produced.
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Your cactus has gotten tall like that because it's not getting enough light. It's called etiolation, where a plant stretches out in search of more light. That's why as it's grown taller, it's also become skinnier at the top (I drew a line on the cactus showing where the normal, healthy growth ended and the etiolated growth began). This is an easy fix, you just give your cactus more light! They need a LOT—at least 4-6 hours of DIRECT sunlight a day. I see you're using a grow light, but it's either not strong enough or too far away. The ideal spot is right in front of a west or south-facing window, but if you don't have either then a grow light will have to suffice. The smaller lights sold on Amazon for $20 or less probably aren't strong enough to meet your cactus's needs. For a few bucks more, you can get a decent full-spectrum light strip (Barrina and Sansi are excellent brands). Position it about 8-10" above your cactus, then adjust as needed.
Ok, sorry to keep you waiting for my take on those white spots! 😜 Fortunately I don't think they pose any danger to your plant, but it's a little hard to tell for sure from this photo. Do they look crusty or more fluffy/cottony? My initial guess is that it's some type of debris or old dried up sap, but more details will help me narrow it down 😉
Ok, sorry to keep you waiting for my take on those white spots! 😜 Fortunately I don't think they pose any danger to your plant, but it's a little hard to tell for sure from this photo. Do they look crusty or more fluffy/cottony? My initial guess is that it's some type of debris or old dried up sap, but more details will help me narrow it down 😉
Thank you! Shew! I was getting nervous and all of these are easy fixes!! I’ll be turning my grow light up on the brightness then