“Rate of growth I've had from this light so far has been brilliant. I have a Fluval Evo and use a small chamber in the built in filtration system to grow Chaeto. I used the velcro option to stick to the outside of the glass. It's on there solid. No chance of coming off. Run it when the tank lights are off and it's been great. 螢70 a bit steep but it's been well worth the investment so far. As for charterhouse aquatics. Ive used them a good few times already and can't fault them at all. Shipped out fast, I know when it's going to arrive and more often than not in comes earlier than predicted. Will use for sure in the future. Thanks.”