OPened OR CLosed ????

What's up RIU Want to know what you think.. Should your reservoir be uncover or covered et me know ....got pics of your set up?? WELL SHOW EM OFF!!!! post them here

Cover it! Light will promote algee growth.

i leave mine uncovered under my ebb and flow tables. i do use a healthy dose of 35% hydrogen peroxide every few days tho. my rez's stay clear.