As far as heat goes, it can be a problem with hps and mh so you need to take that into account. I've got limited height in my grow area so I pretty much had to get a cooltube so I could get the light closer to the plants and wouldn't lose much height. But if you've got more height than me you'd probably be ok with out a cooltube (I love mine tho and for around £30 more than a standard reflector well worth it in my opinion) But a must in either case is a good extraction fan.
hudson88 Reviewed by hudson88 on . My Grow Plan.. (A must read LOL) Ryt then im going to be listing everything im getting (THIS COULD WASTE SOME OF YOUR TIME LOL) and what ive alredy got and remember this is a low budget im not spending hundreds and hundreds and deffinatly not thousands. What ive got.. Nyc diesel x lowryder 10 seeds, soil, pots, water(obviously),a place to grow them. What im getting within the next 2 weeks.. Nutrients. BioBizz Fish-Mix 500ml £5.00 Hesi Hydro Grow 1 Litre S/W £7.00 Hesi Hydro Bloom 1 Litre S/W £7.00 Syringe Rating: 5