[dinor2]

Originally Posted by Jeremy0322

I would just like to know where it is coming from. I am almost positive it was the sand that i added, i was not aware that you were supposed to wash sand before you put it in the tank. I think it is the sand because right after i put it in i moved my heater by sliding it across the back glass and where the suction cup was slid the glass stayed clean. It just seems to weird that it all happened right after the sand and then i noticed that. I have the lights off and Kent Phosphate Sponge in the power filter, plus i cleaned rocks off and other stuff so it should be clearing up shortly hopefully. I was going to get a lawnmower blenny just because i think they are awesome but i do not know if my tank is big enough. It is a 20 long(30x12x12)

I'm so sorry to hear about the algae. I'm dealing with a case of it too after losing my lawnmower; which if I were you I would find a small one, it's recommended for 30gal but, if you have plenty of lr I would think it'd be fine. But here's another blenny you might consider https://www.liveaquaria.com/product/...fm?pCatId=2561

I do believe that a blenny is almost, or possibly even is, a must in a reef tank. They help control algae so well, probably depending on what type of blenny. Let us know what you find!