Water samples from Sabal Lake in Boca Raton are now in Tallahassee being analyzed to find out what killed hundreds of fish — with the city warning residents in the meantime to be cautious of possible blue-green algae toxins."The safest thing to do, I think, is not partake in any water activities-- stay away from that water body. Keep your pets and small children away and not do any boating activities," said Zachary Bihr, municipal services director.Toxic algae warning signs already dot the C-51 Canal, the Lake Worth Spillway Park, and Lake Okeechobee. The Pahokee Marina was closed due to algae on Monday. "We didn’t get into this problem overnight — this has been happening for decades," said Dr. James Sullivan, CEO of Florida Atlantic University's Harbor Branch Oceanographic Institute. Sullivan is on the state’s Blue-Green Algae Task Force, which met Wednesday in West Palm Beach. He said one topic he knew before the meeting was the recent contamination of West Palm Beach’s drinking water by toxic blue-green algae, which has since tested at safe levels. "I’d be interested in getting a detailed briefing on what actually happened – how much monitoring was going on in the reservoir, what procedures were the county or the state using in these reservoirs, are there recommendations we can make to the governor to try and avoid this happening again?" Sullivan said before the meeting.Video below: First three hours of task force meetingIn the meeting, the Department of Environmental Protection presented more than 20 different projects already in the works by universities and colleges across the state to manage and get rid of algae blooms. These projects are under the Innovative Technologies Grant Programs.Three of the projects include nitrogen reduction, algae production and removal, and a focus on algae in waterways.“We look for those projects that are going to get to the source of the problem, which is the nutritionist that we have in the water bodies within the state of Florida," said Edward Smith, with the DEP. "(We are) looking for ways to either prevent them from getting into the water body or (figuring out) how we get them out once they are in a new, innovative way."South Florida Water Management District then took to the podium to show the ways it is currently working on handling algae. Using ultrasonic technology to sink the algae, data tracking, drones, pumps and other forms of physical removal, the organization has been able to reduce blooms in waterways.Other vendors are expected to present their ideas during public comment.Video below: Second half of the task force meetingSullivan urges people with concerns – like Pam McAfee whose dog Bella died an agonizing death last month after ingesting toxic algae – to come to speak during public comment."It's important that politicians and policymakers hear the frustration of the public — sometimes you’ve got to keep the pressure on," he said.